Sri Lanka Timeline: How Explosions Wrought Devastation On Easter Sunday

Across Sri Lanka on Sunday morning, travelers and worshippers settled in at tables for breakfast and into pews at churches on the country's east and west coasts.

Then the explosions began.

Between 8:45 and 9:30 a.m. on Sunday, in three separate cities, suicide bombers at three luxury hotels and three Christian churches detonated explosive devices. Five hours later, two more explosions were reported near the capital city of Colombo, at an inn and a residential housing complex.

More than 200 died in the attacks, and as many as 450 more were injured - turning one of Christianity's holiest days, Easter, into one of mass carnage. Sanctuaries were hit by shrapnel and left without roofs. Photos show blood-spattered walls, splintered wooden pews and bodies.

This is how the day unfolded.

8:45 to 9:30 a.m.

Inside St. Anthony's Shrine, a tourist landmark in Colombo with the largest Roman Catholic congregation in Sri Lanka's capital, dozens gathered Sunday morning to celebrate Easter. Just before 9 a.m., there was an explosion so violent that witnesses said nearby buildings shook - prompting the first news reports on what would become a day of coordinated attacks.

N.A. Sumanapala, a shopkeeper near the church, ran inside to help and found a "river of blood," he told The New York Times. "Ash was falling like snow," he told the newspaper.

Twenty-five miles north, in the Catholic-majority town of Negombo, worshippers filled wooden pews in the golden-tinged sanctuary at St. Sebastian Church. An explosion tore through the room there, too, blasted open the roof and shredded the seating. Shrapnel was embedded in the walls, and small statues of saints fell to the ground. Blood was everywhere.

"A bomb (attack) to our church," someone posted to the church's Facebook page in the moments after the blast, attaching gruesome photos that show mangled bodies and bewildered witnesses. "(Please) come and help if your family members are there."

The blast in Negombo killed more than 100 people and injured just as many.

Just after 10 a.m., The Associated Press reported the first two explosions and shortly afterward followed with a devastating update: At about the same time St. Anthony's and St. Sebastian were being attacked, explosions had rocked three Colombo hotels and a church on Sri Lanka's east coast.

The explosions, officials said, appeared to be coordinated - and the Colombo structures were hit hardest.

The attackers targeted restaurants in the four-star hotels, where tourists were gathered for Easter breakfast. At the Cinnamon Grand Hotel, a manager told Agence France-Presse that a suicide bomber stood in line for the breakfast buffet before detonating the explosives attached to his body. The manager, who spoke to AFP on the condition of anonymity, told AFP that Taprobane, the hotel's ground floor restaurant, was packed with families. The blast set off "utter chaos," the manager told AFP.

Guests throughout the hotel heard and felt the explosion. Julian Emmanuel, a doctor in the United Kingdom, told the BBC that the room he was staying in with his wife and children "rocked." They evacuated and were ushered through the back door, where they saw the damage and passed the bodies.

Two explosions about 10 seconds apart gutted a second floor restaurant at Shangri-La, blowing out the ceiling and windows and exposing wires. Witnesses said that all they could hear was screaming.

"Everyone just started to panic, it was total chaos," Kieran Arasaratnam, a professor at Imperial College London Business School who was staying in the hotel, told the BBC. "Everyone was running, and a lot of people just don't know what was going on. People had blood on their shirt, and there was someone carrying a girl to the ambulance. The walls and the floor were covered in blood."

Authorities moved between overturned tables to inspect the bodies strewn there, some of them tucked beneath white sheets, reported ABC Australia.

A third hotel, the Kingsbury, was attacked about the same time.

Across the country, in Batticaloa, evangelical worshippers at Zion Church became the coordinated attack's only east coast victims. A witness told the BBC that he heard a "big bang" while cycling in the city and saw "smoke billowing into the sky about half a mile away."

The initial chaos of the six blasts made way for swift condemnations from world leaders and a near shutdown of the country.

Officials called in all available law enforcement and health care workers in the affected cities. University classes were canceled indefinitely, and the government told schoolchildren to stay home Monday and Tuesday. Extra security reported to Bandaranaike International Airport and the government shutdown access to social media.

In the Colombo district, Catholic officials canceled all Easter Masses. In Vatican City, Pope Francis condemned "such cruel violence."

On Sunday afternoon, hours after the six coordinated blasts, government officials announced that a curfew would be implemented at 6 p.m. - but authorities implemented it earlier than that.

About 2 p.m.

Five hours after the initial six explosions, another blast was reported at the low-budget Tropical Inn near the national zoo in Dehiwala, south of Colombo. A witness told a local TV station that he saw severed limbs there, according to reporting from Reuters and ABC Australia.

Another witness told CNN that he heard the explosion and saw helicopters fly overheard.

About 2:45 p.m.

Authorities received a tip that potential suspects were inside a safe house at a residential complex in Dematagoda on the outskirts of Colombo. Shortly after the officers entered the home, an eighth blast went off, reported the AP. Several officers were killed.

After the last two explosions, authorities instituted the curfew early. Residents retreated inside, and tourists were forced to stay where they were, even if they wanted to leave the island.

"There's nothing. No vehicles, no people walking, nothing," Simon Whitmarsh, a retired doctor on vacation in Batticaloa, told the BBC. " 'Stay indoors' is the message."