Ukraine train

Several Ukrainian villages are at risk from a giant poisonous cloud that formed after a train carrying a toxic chemical caught fire and derailed.

The cloud covers an area of 90sq km (56sq miles) above some 14 villages near the town of Lviv.
Hundreds of villagers from the area have been evacuated and at least 20 people have been taken to hospital.

The fire aboard the train carrying highly flammable yellow phosphorus was put out late on Monday, reports say.
The train was travelling from Kazakhstan to Poland and Ukrainian rescue teams are still said to be working at the site of the accident.
Ukraine's Deputy Prime Minister Oleksandr Kuzmuk compared the accident to the blast at the Chernobyl nuclear reactor in 1986.