New York City Mayor Bill de Blasio Bill de BlasioThe Hill's Morning Report - Sponsored by The Air Line Pilots Association - White House moves closer to Pelosi on virus relief bill New York again pushes back in-person classes The Hill's Morning Report - Sponsored by The Air Line Pilots Association - Trump contradicts CDC director on vaccine, masks MORE is heading to Germany ahead of the Group of 20 summit, a spokesman for the mayor said Thursday.

"The Mayor will depart this evening for Berlin & Hamburg, Germany. He will attend several events surrounding the G20. +details to follow," de Blasio's press secretary Eric Phillips wrote on Twitter.

The Mayor will depart this evening for Berlin & Hamburg, Germany. He will attend several events surrounding the G20. +details to follow. — Eric Phillips (@EricFPhillips) July 6, 2017

ADVERTISEMENT

It's unclear exactly what events are on de Blasio's schedule, and the mayor's office did not immediately respond to The Hill's request for comment.

President Trump Donald John TrumpObama calls on Senate not to fill Ginsburg's vacancy until after election Planned Parenthood: 'The fate of our rights' depends on Ginsburg replacement Progressive group to spend M in ad campaign on Supreme Court vacancy MORE arrived in Hamburg on Thursday after a brief visit in Warsaw, Poland. The president is set to join a host of world leaders at the annual G-20 summit.

De Blasio, a Democrat, has long been a vocal critic of Trump. He defied the president's decision to withdraw the U.S. from the landmark Paris climate accord in June by signing an executive order committing the city to upholding the climate deal's goals.

Climate change is likely to be a key issue discussed at the G-20 summit. Trump's withdrawal from the Paris agreement infuriated many world leaders, who accused the U.S. of abdicating its global leadership role and weakening the impact of the deal.