The ammonia leak has been contained but prompted a warning residents should stay indoors.

Dozens more are injured in the crash, which the mayor of the town says is a "national catastrophe".

Street fighting hampers efforts to rescue civilians trapped in a bombed theatre, the mayor says.

Russia says it fired a Kinzhal missile at a Ukrainian arms depot, in an apparent change of strategy.

The decision to ditch standard Russian uniforms was interpreted as a show of solidarity for Ukraine.

Around 20 hooded attackers used fireworks to steal €300,000 worth of equipment from the crew.

The BBC hears from three people whose opposition to the war cost them their employment.

Chicago Cubs owners, a consortium featuring Lord Coe and another group led by British property investor Nick Candy all submit offers to buy Chelsea.

The BBC speaks to hacktivists about past and future attacks in their "cyber war" against Vladimir Putin.

Russian advances grind to a halt in many areas as Ukrainian forces launch counterattacks - but fighting is ongoing in Mariupol.

Gordon Brown and Sir John Major join calls for an international tribunal to investigate Russia.

Artem Datsyshyn, a former soloist at the National Opera of Ukraine, died in hospital, reports say.

Weeks after President Putin ordered an invasion, the goals he set appear to have been watered down.

Who are the potential bidders to buy Roman Abramovich's Chelsea as Friday's deadline approaches.

Eight years after Russia seized Crimea, the event is being celebrated with a concert and in schools.

As Russian warships circle off the coast, Odesans face a difficult decision on whether to leave.

The BBC's Quentin Sommerville and Darren Conway are in Kharkiv, where Ukraine's army has repelled Russia for three weeks.

A woman who left Mariupol's theatre a day before the bombing says Russia had been targeting the area.

From chefs to suppliers, the country's food industry is pulling together to feed the population at war.

Experts believe that while additional US aid can help Ukraine fight back, more is still needed.

Survivors from the bombardment of Mariupol are bearing the physical and mental scars of the conflict.

A man is pulled alive from the rubble of a teaching building in Ukraine, after Russian shelling.

The president of Ukraine condemns Russia's actions in the besieged of the port city of Mariupol.

At least six people are killed after a car drives into a crowd of carnival-goers in southern Belgium.

The Polish National Ballet is offering shelter to about 30 Ukrainian dancers in its opera house.