A man wearing a bulletproof vest and armed with two knives was arrested trying to get into Trump Tower, police say.

Authorities say Adames Benitez said that he was a US Senator and wanted to see President Donald Trump's oldest daughter, Ivanka, when he showed up at Trump Tower around 4pm, the New York Post reported.

The 52-year-old man who is from the Bronx was also carrying a forged New York state ID, police say.

He apparently tried to tell officials that he was trying to speak with Ivanka about her dress line, and that he owned the building.

A man wearing a bulletproof vest and armed with two knives was arrested trying to get into Trump Tower, police say (file above)

Adames Benitez allegedly said that he was a US Senator and wanted to see Ivanka Trump when he showed up at Trump Tower around 4pm Thursday. The president, Melania (pictured together right), Ivanka and Jared (pictured together left) are in Germany for the G20 summit

Benitez was quickly taken into custody by the NYPD and Secret Service agents.

He has been charged with criminal possession of a forged instrument and criminal possession of weapons.

Authorities transported Benitez to New York Hospital for a psychiatric examination.

The president, first lady, Ivanka and her husband Jared Kushner are currently out of the country in Germany for the G20 Summit.

Trump is set to meet with Mexico's President Enrique Pena Nieto on Friday, where the border wall issue that loomed large in his campaign will get yet another airing.

Mexico's foreign ministry played down hopes for progress during the scheduled 30-minute meeting, which follows a cancelled January meeting amid tensions over the wall, which Trump insists the U.S. will make Mexico pay for.

Benitez was quickly taken into custody by the NYPD and Secret Service agents. He has been charged with criminal possession of a forged instrument and criminal possession of weapons. Meanwhile, Trump met with German Chancellor Angela Merkel Thursday in Hamburg (above)

'We have to put it in context and not have expectations that are unjustified,' said Mexican Foreign Minister Luis Videgaray.

Things won't get any easier when Trump is face to face with a bevy of other foreign leaders following his trashing of the Paris climate change agreement.

Climate change is a hot issue inside and outside the summit. Ivanka, Melania and G20 spouses will get a tour of the German Climate Computing Center on Friday.

German Chancellor Angela Merkel offered the US president a firm handshake on Thursday as they met in Hamburg for a bilateral summit, holding the pose for several seconds as cameras snapped around them to make sure the media captured the friendly gesture.

A meeting at the White House in March went awry when President Donald Trump missed several verbal and situational cues and did not offer Merkel his hand.

Merkel shot her hand out toward Trump today as they stood before a G20 backdrop at the Hotel Atlantic Kempinski so that it was clear what she wanted. He did not botch the greeting again.