Malta's prime minister said the people on board a boat that capsized in the Mediterranean on Friday were fleeing the conflict in Syria.
The accident follows last week's disaster off the Italian island of Lampedusa, where 339 Eritrean and Somali migrants drowned.
Joseph Muscat told Sky News:
The difference from last week's tragedy is that these people, instead of Somalia, they hail from Syria which makes the case even more complicated and shows the immense humanitarian tragedy that the Mediterranean is experiencing right now.
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The operation to recover the unexploded bomb near the Houses of Parliament let to disruption in central London overnight.
Southern parts of England and Wales will see sunny skies after a frosty start.
A police spokesman said the incident in the Bourke Street Mall on Friday was not related to terrorism.