Ukrainian president Volodymyr Zelensky is meeting Canadian prime minister Justin Trudeau in Ottawa today as he scrambles to rally more international support for his troops fighting Russia. 

Mr Zelensky landed in the capital late on Thursday, and will today have talks with Mr Trudeau before addressing the Canadian parliament.

The Ukrainian leader will hope for a positive outcome after a difficult visit to Washington, where US president Joe Biden offered warm words of support and weapons – but rejected a request for longer range ATACMS missiles.

Mr Zelensky also faced skeptical Republicans who want to cut off aid to his country amid concerns over the slow progress of Ukraine's counteroffensive.

Some Republicans are threatening to block Mr Biden's funding requests, with one senator openly declaring that Congress 'should not be sending another blank check to Zelensky'.

It came just one day after Poland's prime minister announced he would no longer arm Ukraine amid a row over grain exports – in a move sure to delight Russian president Vladimir Putin.