Syrian among 40 being questioned over Easter Sunday bombings
Death toll rises to 321 with about 500 people wounded
Day of mourning and emergency law declared for Sri Lanka
First six attacks came within 20 minutes
FBI, British officials to help in investigation
Colombo | Sri Lankan police detained a Syrian among 40 people being questioned about the Easter Sunday attacks on churches and hotels, government and military sources said on Tuesday, as the toll from the coordinated bomb attacks rose to 321.
No group has claimed responsibility for the attacks, which officials said were carried out by at least seven suicide bombers on three churches and four hotels. About 500 people were also wounded.
