Officials in Sri Lanka say there have been at least 27 foreign casualties among at least 207 killed.
Scotland, Wales and Northern Ireland have their hottest Easter Sunday, and England could follow suit.
Meanwhile, the PM uses her Easter message to call for freedom of religion to be protected.
Climate change protesters in central London say they are entering "a new phase of rebellion".
The NASUWT union says schools should consider banning mobile phones to protect staff and pupils.