Two attackers slit the throat of an 85-year-old priest celebrating Mass in a French church, killing him and gravely injuring one of the few worshippers present before being shot to death by police. A nun who escaped said she saw the attackers take a video of themselves and "give a sermon in Arabic" around the altar.
The Islamic State group claimed responsibility for the attack, the first inside a church in the West.
Police rescued three people inside the church — including a second nun — in the small northwestern town of Saint-Etienne-du-Rouvray, said Interior Ministry spokesman Pierre-Henry Brandet.
A regional Muslim leader said one of the two attackers was known to police, and a police official said he had tried to go to Syria. The official, who spoke on condition of anonymity to reveal details of the investigation, said the man was under police supervision and wore an electronic bracelet to monitor his movements.
A statement published by the Islamic State-affiliated Amaq news agency said the attack was carried out by "two soldiers of the Islamic State" who acted in response to calls to target nations in the U.S.-led coalition fighting IS in Iraq and Syria.
The statement echoed claims in other recent attacks in France and neighboring Germany. It repeated its threat to Western "crusaders."
A special intervention force carried out a search for possible explosives in or around the church.
"The investigations are ongoing. There are still unknowns," Brandet said. "There are dogs, explosive detectors and bomb disposal services" at the church outside the city of Rouen, the capital of France's Normandy region.
A nun who was in the church said the Rev. Jacques Hamel was forced to the ground before his throat was slit. The nun, identified as Sister Danielle, told BFM television: "They forced him to his knees. He wanted to defend himself. And that's when the tragedy happened."
She said the attackers recorded themselves.
"They did a sort of sermon around the altar, in Arabic. It's a horror," she said.
Dominique Lebrun, the archbishop of Rouen, confirmed Hamel's death.
"I cry out to God, with all men of good will. And I invite all non-believers to unite with this cry," Lebrun wrote in a statement from Krakow, Poland. "The Catholic Church has no other arms besides prayer and fraternity between men."
The priest "was always ready to help," said Rouen diocese official Philippe Maheut. He said Hamel had been at the church for the past decade.
"Sometimes he was running all around, and his desire was to spread a message for which he consecrated his life," Maheut said in an interview with AP. "And he certainly didn't think that consecrating his life would mean for him to die while celebrating a Mass, which is a message of love."
French President Francois Hollande, arriving on the scene, called it a "vile terrorist attack" and one more sign that France is at war with the Islamic State group.
"We must lead this war with all our means," he said, adding that he was calling a meeting on Wednesday of representatives of all religions.
He expressed solidarity with local Catholics, saying "they have been terribly hit by the killing of the parish priest by two terrorists claiming to belong to Daesh. I have met with the family of the priest."
Daesh is another name for the Islamic State group.
The town mayor, Hubert Wulfranc, in tears, denounced the "barbarism" and pleaded, "Let us together be the last to cry."
Mohammed Karabila, head of the Regional Council of the Muslim Faith for Haute-Normandie, said French security services knew the name of one of the attackers.
"The person who committed this odious act is known and he has been followed by the police for at least 1 1/2 years. He went to Turkey and security services were alerted after this," he told The Associated Press by phone. He refused to divulge the man's name and had no information on the second attacker.
The pope condemned the attack in the strongest terms. The Vatican spokesman, the Rev. Federico Lombardi, said in a statement that Pope Francis expressed his "pain and horror for this absurd violence, with the strongest condemnation for every form of hatred and prayer for those affected."
Israeli President Reuven Rivlin condemned the attack. "This attack shows the true face of the brutal nature and the horror of terrorism," he said. "The whole free world must understand that our values are under attack."
France is on high alert and under a state of emergency after an attack in the southern city of Nice on Bastille Day — July 14 — that killed 84 people that was claimed by the Islamic State group, as well as a series of attacks last year that killed 147 others around Paris.
French authorities increased security at churches, synagogues, mosques and other places of worship after the attacks in Paris last year, but ensuring constant, blanket security is difficult in a country with a church in every town and village.
Islamic State extremists have urged followers to attack French churches and the group is believed to have planned at least one church attack earlier, though it was never carried out.
In April 2015, an Algerian student who was arrested after shooting himself in the leg was found with heavy weapons, bulletproof vests and documents linked to Islamic State. He is charged with killing a young woman inside her car the same day. According to French authorities, the suspect, Sid Ahmed Ghlam, was sent by the Belgian Abdelhamid Abaaoud to attack a church in Villejuif, just outside of Paris.
A cell directed by Abaaoud later carried out the Nov. 13 attacks in Paris that left 130 people dead and the March 22 attacks in Brussels that killed 32 people
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