Authorities in Sri Lanka say 24 people have been arrested in connection with Easter Sunday attacks.
The attacks involved coordinated explosions in at least eight locations across Sri Lanka including three churches and four high-end hotels.
The death toll has risen to 290.
Now officials have learned that prior to the attacks, multiple warnings were issued.
A memo dated April 11 signed by Sri Lanka’s deputy inspector general of police warned intelligence officers about a possible attack and requested more security.
And the State Department says terror groups are still plotting possible attacks with little or no warning.
Police say they found 87 detonators at a bus station in Sri Lanka’s capital and a ninth explosive device was diffused near the airport.