The Russian embassy has mocked Britain over its silence the Syria ceasefire deal, by suggesting it is either jealous, "on holiday" or in a state of disbelief.

In a poll on Twitter, the embassy asked why there had been no public reaction from the UK to the truce between Russia, Turkey and Iran, which took effect at midnight local time on Thursday.

The poll asks: "No UK reaction to historic Russia-Turkey-Iran brokered all-Syria truce. Why?"

It then gives Twitter users three options for an answer: “Jealousy”, “FCO on holiday” or “Can’t believe”.

The poll currently shows “jealously” as the most popular choice with 50 per cent of the vote, with “FCO on holiday” in second place with 28 per cent and “Can’t believe” in third with 21 per cent.

The tweet mocking the British government comes a week after the former British Ambassador to Syria accused the Foreign Office of lying over the country’s civil war, and saying British policy there has “made the situation worse”.

Peter Ford said the Whitehall department led by Boris Johnson and Philip Hammond before him had “gotten Syria wrong every step of the way”, and was falsely claiming Syrian President ashar al-Assad could not control the country when he is “well on the way to doing so”.

The new Syria ceasefire agreement between government forces and rebels in the country was brokered by Turkey and Russia on Wednesday, and has so far held since it despite isolated clashes and minor violations.

As well as having the backing of Russia, Syria's chief ally, and Turkey, which has been supporting the rebels, the agreement has also been praised by Iran, another of the Syrian regime's strongest backers.

Russian President Vladimir Putin said that if the ceasefire holds, the truce between the Syrian government and the country's mainstream rebel forces will be followed by peace talks in Kazakhstan next month.

The US has been sidelined in recent negotiations and is not due to attend the next round of peace talks in Kazakhstan, although Russia's foreign minister Sergey Lavrov has said President-elect Donald Trump's administration would be welcome to join the peace process once he takes office.

Aleppo before the Syrian Civil War Show all 12 1 /12 Aleppo before the Syrian Civil War Aleppo before the Syrian Civil War Aleppo before the Syrian Civil War A man crosses a street in Aleppo, December 12, 2009 Reuters Aleppo before the Syrian Civil War Aleppo before the Syrian Civil War A vendor sits inside an antique shop in al-Jdeideh neighbourhood, in the Old City of Aleppo, December 12, 2009 Reuters Aleppo before the Syrian Civil War Aleppo before the Syrian Civil War A view shows part of Aleppo's historic citadel, overlooking Aleppo city, Syria Reuters Aleppo before the Syrian Civil War Aleppo before the Syrian Civil War A view shows part of Aleppo's historic citadel, Syria Reuters Aleppo before the Syrian Civil War Aleppo before the Syrian Civil War Visitors walk inside Aleppo's Umayyad mosque, Syria Reuters Aleppo before the Syrian Civil War Aleppo before the Syrian Civil War People walk inside the Khan al-Shounah market, in the Old City of Aleppo, Syria Reuters Aleppo before the Syrian Civil War Aleppo before the Syrian Civil War A man walks past shops in al-Jdeideh neighbourhood, in the Old City of Aleppo, Syria Reuters Aleppo before the Syrian Civil War Aleppo before the Syrian Civil War People walk along an alley in al-Jdeideh neighbourhood, in the Old City of Aleppo, Syria Reuters Aleppo before the Syrian Civil War Aleppo before the Syrian Civil War Visitors tour Aleppo's historic citadel, Syria December 11, 2009 Reuters Aleppo before the Syrian Civil War Aleppo before the Syrian Civil War A general view shows the Old City of Aleppo as seen from Aleppo's historic citadel, Syria December 11, 2009 Reuters Aleppo before the Syrian Civil War Aleppo before the Syrian Civil War People walk near Aleppo's Bab al-Faraj Clock Tower, Syria October 6, 2010 Reuters Aleppo before the Syrian Civil War Aleppo before the Syrian Civil War A man stands inside Aleppo's historic citadel, overlooking Aleppo city, Syria December 11, 2009 Reuters

Several previous ceasefires in the Syrian civil war have collapsed.

The country's civil war, which began when a peaceful uprising descended into violence in 2011, has resulted in more than 300,000 deaths and displaced half the country's population.