President Muhammadu Buhari has commiserated with the families of the victims of the explosions in several churches and hotels in Sri Lanka which left many people dead.
The president wished the injured quick recovery.
Buhari expressed shock and sadness over the terrible attacks carried out on Easter.
“We stand with victims of terrorism all over the world because we know and understand this harrowing inhuman activity,” the President said.
Noting that Nigeria stood with the people of Sri Lankan “at this terrible moment,” President Buhari urged the authorities not to spare the wicked elements behind these mischievous attacks.
At least 137 people were reported killed and hundreds more injured in explosions.
At least eight blasts were reported.
Three churches in Negombo, Batticaloa and Colombo’s Kochchikade district were targeted during Easter services.
The Shangri-La, Kingsbury, Cinnamon Grand and a fourth hotel, all in Colombo, were also hit.
A curfew has been imposed from 18:00 to 06:00 local time (12:30-00:30 GMT).
The government also said there would be a temporary block on the use of major social media networks.
No group has yet said it was responsible for the attacks.
St Sebastian’s church in Negombo was severely damaged.
Images on social media showed its inside, with a shattered ceiling and blood on the pews.
At least 67 people are reported to have died there.
There were heavy casualties too at the site of the first blast in St Anthony’s, a hugely popular shrine in Kochchikade, a district of Colombo.
Among those killed in Colombo were at least nine foreign nationals, hospital sources told the BBC.
Hospital sources in Batticaloa said at least 27 people had died there.
A hotel official at the Cinnamon Grand, near the prime minister’s official residence said the explosion there had ripped through a restaurant, killing at least one person.
A seventh explosion was later reported at a hotel near the zoo in Dehiwala, southern Colombo, with police sources reporting two deaths.
The zoo has been closed.
An eighth explosion has been reported in the Colombo district of Dematagoda.
