The suspect in the Christmas market attack in Germany has been arrested on charges of murder

German police said on Sunday that the man suspected of driving a car through a Christmas market in Germany in an attack that killed at least five people and injured dozens faces charges of murder and attempted murder, after the man was detained in pretrial detention.

Police in the central city of Magdeburg, where the attack occurred on Friday, also reported scuffles at a far-right demonstration attended by about 2,100 people on Saturday evening, while other residents participated in somber memorial events.

The suspect is a 50-year-old Saudi man who has lived in Germany for nearly two decades.

A judge ordered the man to be held in pretrial detention after prosecutors filed five counts of murder, multiple counts of attempted murder and grievous bodily harm, according to a police statement.

She said the dead were a nine-year-old boy and four adult women, ages 52, 45, 75 and 67.

German authorities did not name the suspect, who has permanent resident status in Germany, and local media reports did not mention his full name in line with local privacy law. However, international media, including BBC News and The Guardian, identified the accused as Talib al-Abd al-Muhsin.

Suspect X’s account describes him as a former Muslim. It is full of tweets and retweets focusing on anti-Islamic themes and criticism of the religion, while sharing congratulatory messages for Muslims who have left the faith. He criticized the German authorities, saying they had failed to do enough to combat the “Islamization of Europe.” He also expressed his support for the far-right, anti-immigrant Alternative for Germany party.

Police reported scuffles at a protest attended by about 2,100 people on Saturday evening, a day after the attack. Right-wingers described the gathering on the messaging app Telegram as a “demonstration against terrorism.”

Protesters wearing black masks were seen carrying a large banner with the word “reimmigration” written on it, a popular term among far-right supporters who seek the mass deportation of immigrants and people not considered to be of German descent.

The motive behind Friday night’s attack remains unclear.