COLOMBO, Sri Lanka (AP) - More than 200 people were killed and hundreds more wounded in eight bomb blasts that rocked churches and luxury hotels in or near Sri Lanka's capital on Easter Sunday - the deadliest violence the South Asian island country has seen since a bloody civil war ended a decade ago.
U.S. Secretary of State Mike Pompeo says `several' Americans were among those killed in the attack.
Defense Minister Ruwan Wijewardena described the bombings as a terrorist attack by religious extremists and said seven suspects had been arrested, though there was no immediate claim of responsibility. Wijewardena said most of the blasts were believed to have been suicide attacks.
The explosions collapsed ceilings and blew out windows, killing worshippers and hotel guests. People were seen carrying the wounded out of blood-spattered pews. Witnesses described powerful explosions, followed by scenes of smoke, blood, broken glass, alarms going off and victims screaming in terror.
"People were being dragged out," Bhanuka Harischandra of Colombo, a 24-year-old founder of a tech marketing company who was going to the city's Shangri-La Hotel for a meeting when it was bombed. "People didn't know what was going on. It was panic mode."
He added: "There was blood everywhere."
The three bombed hotels and one of the churches, St. Anthony's Shrine, are frequented by foreign tourists. Sri Lanka's Foreign Ministry said the bodies of at least 27 foreigners were recovered, and the dead included people from Britain, the U.S., India, Portugal and Turkey. China's Communist Party newspaper said two Chinese were killed.
Prime Minister Ranil Wickremesinghe said he feared the violence could trigger instability in Sri Lanka, a country of about 21 million people, and he vowed the government will "vest all necessary powers with the defense forces" to take action against those responsible for the massacre. The government imposed a nationwide curfew from 6 p.m. to 6 a.m.
The Archbishop of Colombo, Cardinal Malcolm Ranjith, called on Sri Lanka's government to "mercilessly" punish those responsible "because only animals can behave like that."
Police spokesman Ruwan Gunasekara said 207 people were killed and 450 wounded.
The scale of the bloodshed recalled the worst days of the nation's 26-year civil war, in which the Tamil Tigers, a rebel group from the ethnic Tamil minority, sought independence from Sri Lanka, a Buddhist-majority country. During the war, the Tigers and other rebels carried out a multitude of bombings. The Tamils are Hindu, Muslim and Christian.
Sri Lanka is about 70 percent Buddhist, with the rest of the population Muslim, Hindu or Christian. While there have been scattered incidents of anti-Christian harassment in recent years, there has been nothing on the scale of what happened Sunday.
There is also no history of violent Muslim militants in Sri Lanka. However, tensions have been running high more recently between hard-line Buddhist monks and Muslims.
Two Muslim groups in Sri Lanka condemned the church attacks, as did countries around the world, and Pope Francis expressed condolences at the end of his traditional Easter Sunday blessing in Rome.
"I want to express my loving closeness to the Christian community, targeted while they were gathered in prayer, and all the victims of such cruel violence," Francis said.
The first six blasts took place nearly simultaneously in the morning at St. Anthony's Shrine, a Catholic church in Colombo, and three hotels in the city. The two other explosions occurred after a lull of a few hours at St. Sebastian Catholic church in Negombo, a majority Catholic town north of Colombo, and at the Protestant Zion church in the eastern town of Batticaloa.
Three police officers were killed while conducting a search at a suspected safe house in Dematagoda, on the outskirts of Colombo. The occupants of the safe house apparently detonated explosives to prevent arrest, Wijewardena said.
Local TV showed damage at the Cinnamon Grand, Shangri-La and Kingsbury hotels. The Shangri-La's second-floor restaurant was gutted, with the ceiling and windows blown out. Loose wires hung and tables were overturned in the blackened space. From outside the police cordon, three bodies could be seen covered in white sheets.
Foreign tourists hurriedly took to their cellphones to text family and loved ones around the world that they were OK.
One group was on a 15-day tour of the tropical island nation, seeing such sites as huge Buddhist monuments, tea plantations, jungle eco-lodges and sandy beaches. The tour was supposed to end in Colombo, but tour operators said the group may skip the capital in light of the attacks. The tour started last week in Negombo, where one of the blasts struck.
"Having experienced the open and welcoming Sri Lanka during my last week traveling through the country, I had a sense that the country was turning the corner, and in particular those in the tourism industry were hopeful for the future," said Peter Kelson, a technology manager from Sydney.
"Apart from the tragedy of the immediate victims of the bombings, I worry that these terrible events will set the country back significantly."
Sri Lankan security forces defeated the Tamil Tiger rebels in 2009. The United Nations initially estimated the death toll from the civil war at 100,000, but a U.N. expert panel later said some 45,000 ethnic Tamils may have been killed in the last months of the fighting alone. Both sides were accused of grave human rights violations.
Sri Lanka, a small island nation at the southern tip of India, has a long history with Christianity. Christian tradition holds that St. Thomas the Apostle visited Sri Lanka and southern India in the decades after the death of Christ. The majority of the island's Christians are Roman Catholic.
Associated Press writers Sheila Norman-Culp and Gregory Katz in London; Jon Gambrell in Dubai, United Arab Emirates; Vladimir Isachenkov in Moscow; Nicole Winfield at the Vatican; Adam Schreck in Bangkok; and Emily Schmall in New Delhi contributed to this report.