The opposition is hoping the march galvanises voters to participate in the election, giving it a chance to come ahead.

Zelensky angered his neighbours when he told the UN General Assembly in New York that Kyiv was working to preserve land routes for grain exports, but that the 'political theatre' around grain imports was only helping Moscow.

OpenAI has already faced at least its second class action lawsuit in San Francisco federal court for allegedly breaking privacy laws.

Poland has been one of Ukraine's staunchest allies since Russia invaded the country in February 2022, but the countries have fallen out over Ukrainian grain exports.

Legionnaires' disease, caused by the legionella bacteria, can result in a severe form of pneumonia.

Ukrainian President Volodymyr Zelensky says there can be no 'crack' in the shield that solid Polish support has provided for Ukraine.

Eight others were injured, two of them seriously.

The attacker was arrested at his place of residence about an hour after the incident and did not put up any resistance.

It calls the act a flagrant violation of the Vienna Convention on diplomatic relations.

Poland has been on alert for possible spillover of weaponry from the war in Ukraine, especially since two people were killed near the border by what Warsaw concluded was a misfired Ukrainian air defence missile.

Sending any fighter jets would mark a crucial development in the conflict and would boost Kyiv's defence against Russian missile strikes and drone attacks.

Biden will meet Polish President Andrzej Duda to discuss collective efforts to support Ukraine and thank Poland for helping the US and other countries facilitate deliveries of military and humanitarian assistance.