Indian police officers stand guard outside a church in New Delhi, India 22 April 2019. Security is on the high alert in Delhi after a series of blasts occured during Easter Sunday at churches and hotels across Colombo, Sri Lanka, on 21 April. According to news reports, at least 290 people have been killed and over 500 were injured during the series of blasts. EPA photo

COLOMBO: Sri Lankan police found 87 bomb detonators at the main bus station in the capital, Colombo, on Monday, a spokesman said, a day after suicide bombers attacked churches and hotels killing 290 people and wounding about 500.

Security forces are carrying out searches across the island to find those behind the bombs. No group has claimed responsibility.