Britons are thought to be among those caught up in a series of explosions which ripped through churches and hotels in Sri Lanka, killing more than 200 people.
Theresa May said the Easter Sunday massacre was “truly appalling” and “no one should ever have to practise their faith in fear”.
The UK’s High Commissioner to Sri Lanka, James Dauris, said: “We understand that some British citizens were caught in the blasts but we are unable to say how many people are, or might have been, affected.”
He urged Britons to get in touch with members of their family to let them know they were safe.
Six nearly simultaneous explosions at churches and hotels killed scores of people in Colombo, Negombo and Batticaloa.
Hours later, two more explosions occurred – a blast at a guesthouse in Dehiwala killed two and an eighth incident occurred in Dematagoda on the outskirts of Colombo.
A Sri Lankan police spokesman said 207 were killed and 450 injured in the attacks.
Foreign nationals are among the dead, with a Dutch man confirmed as one of the fatalities.
The acts of violence against churches and hotels in Sri Lanka are truly appalling, and my deepest sympathies go out to all of those affected at this tragic time.
We must stand together to make sure that no one should ever have to practise their faith in fear.
— Theresa May (@theresa_may) April 21, 2019
Mrs May said: “The acts of violence against churches and hotels in Sri Lanka are truly appalling, and my deepest sympathies go out to all of those affected at this tragic time.
“We must stand together to make sure that no one should ever have to practise their faith in fear.”
Mr Dauris was in Colombo with his family at a church service which was cut short by the attacks.
In a video message he said: “Earlier today a series of explosions took place in hotels and churches in Colombo, in Negombo and in Batticaloa on Sri Lanka’s east coast.
“The churches were busy with Easter Sunday worshippers, the hotels with local people and foreign visitors.
“Reports suggest that several dozen people have been killed and hundreds injured in these evil and senseless attacks.”
Mr Dauris and his consular team were visiting one of the main hospitals in Colombo where casualties had been taken.
He said: “If you are affected, or are concerned about someone who you think might be affected, please help us to help you.
#Sri Lanka: There have been a number of explosions in Sri Lanka, including Colombo, on Sunday 21 April. Please follow the instructions of local security officials and follow travel advice for updates. https://t.co/vWOodfYNtg pic.twitter.com/U3nmVKJmCx
— FCO travel advice (@FCOtravel) April 21, 2019
“If you are in Sri Lanka please follow the instructions given to you by local authorities and hotel security staff.
“Please follow our travel advice and keep checking for updates.”
Those in Sri Lanka who need help were urged to call the High Commission in Colombo on +94 11 5390639 while people in the UK worried about friends or family should call the Foreign Office on 020 7008 1500.
Labour leader Jeremy Corbyn called for “unity, love and respect” to combat hatred.
He said: “I’m appalled by the horrific attacks in Sri Lanka, on Easter Sunday, the most important day in the Christian calendar.
I’m appalled by the horrific attacks in Sri Lanka, on Easter Sunday, the most important day in the Christian calendar. I stand with the victims, their families, the people of Sri Lanka and Christians around the world. We must defeat this hatred with unity, love and respect.
— Jeremy Corbyn (@jeremycorbyn) April 21, 2019
“I stand with the victims, their families, the people of Sri Lanka and Christians around the world. We must defeat this hatred with unity, love and respect.”
Foreign Secretary Jeremy Hunt said he was “deeply shocked and saddened” by the “horrifying attacks”.
He added: “To target those gathered for worship on Easter Sunday is particularly wicked.”
I’m deeply shocked and saddened by the horrifying attacks on churches and hotels in Sri Lanka today. To target those gathered for worship on Easter Sunday is particularly wicked. My prayers are with the victims and their families, and with those assisting in the response. https://t.co/a8UaOLFviv
— Jeremy Hunt (@Jeremy_Hunt) April 21, 2019
Archbishop of Canterbury Justin Welby said: “On this holy day, let us stand with the people of Sri Lanka in prayer, condolence and solidarity as we reject all violence, all hatred and all division.”
On this holy day, let us stand with the people of Sri Lanka in prayer, condolence and solidarity as we reject all violence, all hatred and all division.
— Archbishop of Canterbury (@JustinWelby) April 21, 2019
Sri Lanka’s prime minister Ranil Wickremesinghe condemned “the cowardly attacks on our people”.
I strongly condemn the cowardly attacks on our people today. I call upon all Sri Lankans during this tragic time to remain united and strong. Please avoid propagating unverified reports and speculation. The government is taking immediate steps to contain this situation.
— Ranil Wickremesinghe (@RW_UNP) April 21, 2019
In Colombo, St Anthony’s Shrine and the Cinnamon Grand, Shangri-La and Kingsbury hotels were targeted.
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.
Julian Emmanuel and his family, from Surrey, were staying at the Cinnamon Grand when the bomb went off.
He told the BBC: “We were in our room and heard a large explosion. It woke us up. There were ambulances, fire crews, police sirens.
“I came out of the room to see what’s happening, we were ushered downstairs.
“We were told there had been a bomb. Staff said some people were killed. One member of staff told me it was a suicide bomber.”