Some 10,000 people were evacuated after a fire and a series of explosions at an arms depot in the north of Ukraine early Tuesday, authorities said.

Three teenage schoolboys were killed in eastern Ukraine when they triggered a mine in an area that has seen heavy fighting between separatists and Ukrainian troops, the region's separatist authorities said on Sunday.

HE Jassim Seif Ahmed al-Sulaiti and Volodymyr Omelyan also held a meeting where they discussed aspects of co-operation between Qatar and Ukraine in the fields of maritime transport and ports.

The EU on Tuesday expanded its sanctions against Moscow to include companies that helped build a bridge from mainland Russia to Kremlin-annexed Crimea, which it says violates Ukraine's sovereignty.

Ukraine supporters have flooded the Facebook page of football governing body FIFA with over 158,000 comments, most saying "Glory to Ukraine", after FIFA fined Croatia's assistant coach for a video in which he used the same slogan.

Masked assailants have attacked a Roma camp in western Ukraine, killing one person and injuring four others including a child, police said Sunday.

The European Union on Monday rolled over for another year tough sanctions imposed over Russia's 2014 annexation of Crimea from Ukraine.

Two Ukrainian soldiers died and six were wounded in a new uptick of fighting between government troops and Russian-backed rebels in the east following high-profile peace talks, the military said Friday.

The Russian leader said that there is "nothing that inspires confidence" in the international investigation and that "several versions" of what happened exist.

Investigators probing the 2014 downing of flight MH17 said Thursday, for the first time, that the missile which brought down the plane over eastern Ukraine came from a Russian military brigade.

The Crimean Bridge, at 19 kilometres will be Europe's longest, overtaking Lisbon's Vasco da Gama Bridge.

Ukraine on Wednesday rejected a natural gas transit proposal by Russian energy giant Gazprom as an unacceptable and unprofitable proposition for Kiev.