Berlin Mayor Kai Wegner has called for Islamic religious education to be introduced in state schools following the deadly Islamist attack near the capital’s Christopher Street Day celebrations.

The CDU politician argued that young Muslims are being radicalized through religious networks operating beyond meaningful state oversight, including what he described as “backyard mosques.”

As reported by Tagesspiegel, Wegner said Islamic instruction inside public schools could help protect young people from extremist influences because the curriculum and teachers would be subject to state supervision.

“Religious education in state schools could make a significant contribution to protecting young people from such influences,” he said.

He added that Islamic religious education should be offered in Berlin schools precisely because it would bring instruction under public control rather than leaving it solely to independent mosques and associations.

“We must increase the pressure and control on radical mosques with the aim of banning them,” he also added, as cited by Bild.

The intervention follows an attack by Abdul Ballout, a known Islamist whom German authorities had previously prosecuted for attempting to join Islamic State.

Germany brought Syria-bound Islamist back from Lebanon — then let him loose before Berlin CSD massacre

Ballout had been detained in Lebanon while trying to reach Syria, returned to Germany and arrested at Berlin Brandenburg Airport in November 2025.

In May 2026, a Berlin youth court convicted him of preparing a serious act of violence endangering the state, distributing Islamic State propaganda and other offenses.

Prosecutors sought a sentence of two years and ten months, but the court imposed a youth sentence of one year and ten months and provisionally suspended it.

He was released while prosecutors appealed.

Ballout was later accused of killing a woman and injuring 29 people after driving a rented van into a crowd in Berlin’s Tiergarten before attacking people with a machete.

Police subsequently located him at an allotment complex in Spandau. He was shot dead after approaching officers with a bladed weapon.