Mykhailo Fedorov has also called for wartime elections to be held in Ukraine.

Canada's PM said he was "reluctantly" announcing retaliatory tariffs and accused the US of starting a trade war.

A mound of rubbish at a major waste site buried several homes in the capital, the government says.

Representatives met in Switzerland to work out next steps to resolve the conflict.

A government minister says people have been taking risks by going into the water, with 301 deaths since 19 June.

No group has claimed responsibility for the attacks, which the military said "aimed at creating unrest".