A UN special representative has reportedly agreed to end his mission in Crimea and fly out of the region after he was stopped by around fifteen armed men in a coffee shop on Wednesday.

Serry, the Netherlands' first ambassador to Ukraine, got into a car waiting outside the shop, surrounded by crowds shouting the name of Russia President Vladimir Putin, an ITN reporter said on Twitter.

Robert Serry had left the headquarters of the navy in Simferopol, when his vehicle was blocked by armed men in unmarked uniform and told him they had an order to take him to the airport, according to Ukrainian Foreign Ministry Press Secretary Yevhen Perebiynis.

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ITN reporter James Mates who is accompanying Robert Serry, said on Twitter: "He [Serry] refused to go with men blocking car, got out and walked until he found coffee shop. He's asked ITV News team to stay with him."

Mates said in another tweeter before Serry escaped that local militia were blocking the door outside the shop.

Shape Created with Sketch. In pictures: The crisis in Ukraine Show all 15 left Created with Sketch. right Created with Sketch. Shape Created with Sketch. In pictures: The crisis in Ukraine 1/15 Perevalnoye, Ukarine Russian forces stand as they block the Ukrainian unit in Perevalnoye, not far from Simferopol 2/15 London, England Memorials and floral tributes, dedicated to protesters who were killed in recent clashes with security forces in Kiev, surround a statue of 'Vladimir the Great', the Grand Prince of Kiev from 980 to 1015 AD, in Notting Hill in London 3/15 Kiev, Ukraine Pallbearers carry the coffin of Andryi Pozniak (25) a self defense volunteer who was shot and killed by an unknown assailant near Kiev's Independence Square 4/15 Simferopol, Ukraine Ukrainian police officers hold an activist of the Ukrainian women movement Femen 5/15 Kiev, Ukraine A woman distributes food on Independence Square in central Kiev Dimitar Dilkoff/AFP/Getty Images 6/15 Lubimovka, Ukraine Ukrainian soldiers at the Belbek military base talk friends and family members through the gates of the base entrance in Lubimovka, Ukraine Sean Gallup/Getty Images 7/15 Donetsk, Ukraine Pro-Russian activists demonstrate in front of the regional administration in Donetsk. Russian military forces and planes were flowing into Crimea on March 3, in violation of bilateral accords, Ukrainian border guards said Alexander Khudoteply/AFP/Getty Images 8/15 Donetsk, Ukraine Riot policemen stand guard in front of the regional administration in Donetsk Alexander Khudoteply/AFP/Getty Images 9/15 Perevalne Pro-Russian activists stand guard in front of armed men in military fatigues blocking access to a Ukrainian border guards base not far from the village of Perevalne near Simferopol Alexander Nemenov/AFP/Getty Images 10/15 Kirillovsky, Russia Russia's President Vladimir Putin, accompanied by Russian Defence Minister Sergei Shoigu (front left), walks to watch military exercises upon his arrival at the Kirillovsky firing ground in the Leningrad region RIA Novosti/Reuters 11/15 Sevastopol, Ukraine A Russian Navy De-Gaussing Ship passes in Sevastopol harbour. The Russian Black Sea Fleet commander Aleksandr Vitko has issued an ultimatum to the Ukrainian military personnel in Crimea, according to reports Filippo Monteforte/AFP/Getty Images 12/15 New York, USA The UN Security Council chamber during a meeting on the situation in the Ukraine at the UN headquarters in New York City Jason Szenes/EPA 13/15 Bakhchisaray, Ukraine Armed men in military fatigues block access to Ukrainian military barracks in the small Crimean city of Bakhchisaray Genya Savilov/AFP/Getty Images 14/15 Sevastopol, Ukraine A Ukrainian soldier speaks to his daughter through a gate as he waits inside the Sevastopol tactical military brigade base near Belbek in Sevastopol Filippo Monteforte/AFP/Getty Images 15/15 Odessa, Ukraine A Pro-Russian activist waves a chain after an unsuccessful attempt by the demonstrators to storm a regional state administration building in the Black Sea city of Odessa Alexey Kravtsov/AFP/Getty Images 1/15 Perevalnoye, Ukarine Russian forces stand as they block the Ukrainian unit in Perevalnoye, not far from Simferopol 2/15 London, England Memorials and floral tributes, dedicated to protesters who were killed in recent clashes with security forces in Kiev, surround a statue of 'Vladimir the Great', the Grand Prince of Kiev from 980 to 1015 AD, in Notting Hill in London 3/15 Kiev, Ukraine Pallbearers carry the coffin of Andryi Pozniak (25) a self defense volunteer who was shot and killed by an unknown assailant near Kiev's Independence Square 4/15 Simferopol, Ukraine Ukrainian police officers hold an activist of the Ukrainian women movement Femen 5/15 Kiev, Ukraine A woman distributes food on Independence Square in central Kiev Dimitar Dilkoff/AFP/Getty Images 6/15 Lubimovka, Ukraine Ukrainian soldiers at the Belbek military base talk friends and family members through the gates of the base entrance in Lubimovka, Ukraine Sean Gallup/Getty Images 7/15 Donetsk, Ukraine Pro-Russian activists demonstrate in front of the regional administration in Donetsk. Russian military forces and planes were flowing into Crimea on March 3, in violation of bilateral accords, Ukrainian border guards said Alexander Khudoteply/AFP/Getty Images 8/15 Donetsk, Ukraine Riot policemen stand guard in front of the regional administration in Donetsk Alexander Khudoteply/AFP/Getty Images 9/15 Perevalne Pro-Russian activists stand guard in front of armed men in military fatigues blocking access to a Ukrainian border guards base not far from the village of Perevalne near Simferopol Alexander Nemenov/AFP/Getty Images 10/15 Kirillovsky, Russia Russia's President Vladimir Putin, accompanied by Russian Defence Minister Sergei Shoigu (front left), walks to watch military exercises upon his arrival at the Kirillovsky firing ground in the Leningrad region RIA Novosti/Reuters 11/15 Sevastopol, Ukraine A Russian Navy De-Gaussing Ship passes in Sevastopol harbour. The Russian Black Sea Fleet commander Aleksandr Vitko has issued an ultimatum to the Ukrainian military personnel in Crimea, according to reports Filippo Monteforte/AFP/Getty Images 12/15 New York, USA The UN Security Council chamber during a meeting on the situation in the Ukraine at the UN headquarters in New York City Jason Szenes/EPA 13/15 Bakhchisaray, Ukraine Armed men in military fatigues block access to Ukrainian military barracks in the small Crimean city of Bakhchisaray Genya Savilov/AFP/Getty Images 14/15 Sevastopol, Ukraine A Ukrainian soldier speaks to his daughter through a gate as he waits inside the Sevastopol tactical military brigade base near Belbek in Sevastopol Filippo Monteforte/AFP/Getty Images 15/15 Odessa, Ukraine A Pro-Russian activist waves a chain after an unsuccessful attempt by the demonstrators to storm a regional state administration building in the Black Sea city of Odessa Alexey Kravtsov/AFP/Getty Images

Eliasson, who is in the Ukrainian capital Kiev, said he had spoken to Serry who he said "is in good shape physically."

"He is now walking back to his hotel after stopping by in a cafe to get guidance to reach the hotel."

Crimea is under the control of Russian military forces, although Moscow describes its troops there who wear no insignia on their uniforms as "self-defence" units of the local administration.

Later Mates added that Serry had said he was very happy to leave Crimea "if it helped de-escalate the situation".

Additional reporting by Reuters