There was a terrorist stabbing attack on a group of Christians at a festival in Solingen, Germany that left three dead and eight wounded.

ISIS has just claimed responsibility for the attack, saying the attacker was an ISIS soldier and that it was about Palestine or something.

Here’s more from Fox News:

The Islamic State group claimed responsibility for the deadly stabbing spree at a festival in Germany on Friday that left three people dead and eight others injured.

The group said the attacker targeted Christians and was a “soldier of the Islamic State” who carried out the attack “to avenge Muslims in Palestine and everywhere.”

German police previously said that there was no other obvious motive other than terror and that the attacker appeared to be unknown to the victims.

Late Saturday, authorities said that they had arrested a second person, along with a 15-year-old boy, in connection to the attack.

The second suspect was arrested at a home for refugees in Solingen, which is located near Cologne and Duesseldorf in the west of the country. Authorities have not identified the suspects name, age or if they are the main perpetrator of the attack.

Authorities previously shared that the 15-year-old boy knew of the attack and failed to inform authorities, but said that he was not the attacker.

Prosecutor Markus Caspers said that the 15-year-old boy was arrested after two female witnesses contacted police. The witnesses said they had listened to a conversation between the boy and an unknown person before the attack, speaking about intentions that corresponded to the events that followed.

The victims were in front of a stage enjoying a live music band playing to mark the town’s 650-year anniversary when the attack occurred at around 9:35 p.m. local time Friday.

The three people who died were two men aged 67 and 56, and a 56-year-old woman, authorities said. Police said the attacker appeared to have deliberately aimed for his victims’ throats.

Thorsten Fleiss from the German police, who was the chief of operations on Friday night, said that police are conducting various searches and investigations in the entire state of North Rhine-Westphalia that will continue throughout the day.

The ISIS terrorist was originally from Syria and came to Germany less than two years ago: