BERLIN — A 26-year-old German man fatally shot six of his relatives Friday, police said, a rare mass shooting in a country with some of the strictest gun laws in Europe.

The victims included the suspect’s 65-year-old father and 56-year-old mother, said police spokesman David Ebert. He said police think the other four victims, two men and two women, were also relatives. Two others were wounded.

The shooting took place at the family home, in a residential building above a bar in the small southwestern town of Rot am See, which has a population of just over 5,000. After the shooting, the suspect called the police, surrendering when authorities arrived.

Police said they could not speculate about possible motives on Fridayevening, as the suspect was waiting for a lawyer before making a statement.

Private gun ownership is relatively high in Germany compared to some other countries in Europe, with about 20 firearms per 100 citizens. However, gun laws are stringent, and many people keep their weapons at ranges and gun clubs. Gun laws were restricted after a gunman killed 16 people at a school in Erfurt in 2003, and again after another school shooting in 2009 claimed 15 lives.

Automatic weapons are completely banned, while the ownership of semiautomatic weapons is severely restricted. Gun owners must obtain a license. The suspect in Friday’s shooting holds one, according to German news reports.