German police say a man has turned himself in for the knife attack in Solingen that killed 3 people

SOLINGEN, Germany — A 26-year-old man has turned himself in to police, saying he was responsible for a knife attack in Solingen that left three dead and eight injured at a festival marking the city’s 650th anniversary, German authorities announced early Sunday.

Düsseldorf police said in a joint statement with the public prosecutor’s office that the man “declared responsibility for the attack.”

“The involvement of this person in the crime is currently being intensively investigated,” the statement said.

The video in the player above is from a previous report.

Federal prosecutors said they were investigating him on suspicion of murder, attempted murder and membership in a foreign terrorist organization. The suspect is scheduled to appear before a judge for the first time on Sunday afternoon.

The suspect is a Syrian citizen who had applied for asylum in Germany, police confirmed to The Associated Press. The dpa news agency reported, without citing any specific source, that his asylum application had been denied and that he was due to be deported last year.

On Saturday, the Islamic State militant group claimed responsibility for the attack, without providing evidence. The extremist group said on its news site that the attacker targeted Christians and that the perpetrator carried out the attacks on Friday night “to avenge Muslims in Palestine and everywhere.” The claim could not be independently verified.

Friday’s attack left the city of Solingen in a state of shock and grief. Solingen, a city of about 160,000 people located near the larger cities of Cologne and Düsseldorf, was holding a “Diversity Festival” to mark its anniversary.

Shortly after 9.30pm local time on Friday, police alerted residents that a man had attacked several people with a knife in the city’s central square, the Fronhof. The three people killed were two men aged 67 and 56 and a 56-year-old woman, according to authorities. Police said the attacker appeared to have deliberately targeted his victims’ throats.

The festival, which was due to run until Sunday, was cancelled as police searched for clues in the cordoned-off square. Instead, residents gathered to mourn the dead and injured, placing flowers and notes near the site of the attack.

“What?” asked a sign placed among candles and teddy bears. Why?

Among those who asked this question was Cord Boetther, a 62-year-old businessman from Solingen.

“Why does this have to be done? It’s incomprehensible and it hurts,” Boetther said.

Authorities had previously said a 15-year-old boy was arrested on suspicion that he knew about the planned attack and did not inform authorities, but that he was not the attacker. Two female witnesses told police they had heard the boy and an unknown person before the attack talking about intentions that included bloodshed, authorities said.

The attack comes amid a debate over immigration ahead of regional elections next Sunday in the German regions of Saxony and Thuringia, where anti-immigration parties such as the populist Alternative for Germany are expected to do well. In June, Chancellor Olaf Scholz promised the country would start deporting criminals from Afghanistan and Syria again after an Afghan migrant went on a knife attack that left a police officer dead and four people injured.

The militant group IS declared its caliphate in large parts of Iraq and Syria about a decade ago, but now has no control over any territory and has lost many prominent leaders. The group is largely out of the international news headlines.

But it continues to recruit members and claim responsibility for deadly attacks around the world, including deadly operations in Iran and Russia earlier this year that killed dozens of people. Its sleeper cells in Syria and Iraq continue to carry out attacks against government forces in both countries, as well as U.S.-backed Syrian fighters.

McHugh contributed from Frankfurt, Germany.