A £20,000 reward is offered for information leading to the arrest and conviction of the gang responsible for the Hatton Garden heist.

SNP leader Nicola Sturgeon says she would prop up a Labour government, even if the Tories finished the election as the largest party by up to 40 seats.

Amazon reports a loss of $57m in the first quarter and also said its web services business generated sales of $1.57bn.

The tech-heavy Nasdaq index closes at a record high, surpassing a level it last reached in 2000 at the height of the dot com bubble.

German President Joachim Gauck describes as "genocide" the 1915 killings of Armenians by Ottoman Turks, a move likely to cause outrage in Turkey.

Final clinical trials of a malaria vaccine - the first to reach this stage - suggest it could protect one third of children against malaria, according to data published in The Lancet.

Proposals for "English votes for English laws" would be in place for the first Budget of a Conservative government, David Cameron is to say.

World leaders gather to mark the 100th anniversary of the Gallipoli campaign, one of the bloodiest of World War One, in which 141,000 soldiers died.