Nearly 300 people, including eight Britons, have died after a series of bombings in Sri Lanka.
Here is what we know so far:
– Six nearly simultaneous explosions at three churches and three hotels took place at Colombo, Negombo and Batticaloa on Easter Sunday.
– In Colombo, St Anthony’s Shrine and the Cinnamon Grand, Shangri-La and Kingsbury hotels were targeted in the first wave of explosions.
– Other blasts were reported at St Sebastian’s Church in Negombo, a majority Catholic town north of Colombo, and at Zion Church in the eastern town of Batticaloa.
– Three police officers were killed when they went to question suspects following a tip.
– There were two further explosions later at a guesthouse in Dehiwala and near an overpass at Dematagoda on the outskirts of Colombo.
– Sri Lankan officials have described it as a terrorist attack by religious extremists. Most of the eight blasts are suspected suicide attacks.
– Police will examine reports that the intelligence community failed to detect or warn of possible suicide attacks as part of their investigation.
– Eight Britons are among the 290 people dead.
– Among the Britons feared dead are Anita Nicholson, 42, and her 11-year-old son Alex.
– There are also US, Turkish, Indian, Portuguese, Dutch and Chinese victims among the 27 foreign nationals killed.
– More than 500 people have been injured.
– Thirteen suspects have been arrested, according to officials. No-one has taken responsibility for the massacre.
– Sri Lankan authorities blocked access to many social media services in the wake of the attack, with Facebook, YouTube and WhatsApp all affected.