According to police, two people were stabbed to death at a Muslim religious center in the Portuguese capital of Lisbon.
The attack took place at the Ismaili Centre. The suspect, who was in possession of a large knife, is reportedly of Afghan origin.
Local media say he was shot and wounded by police, who then detained him. The motive is not clear.
Ismailism is a branch of Shia Islam. Some followers recognise Prince Karim Aga Khan as their spiritual leader.
According to Portuguese Prime Minister Antonio Costa, the incident appears to be “an isolated act,” and discussing a possible motive is “premature.”
An employee at the Ismaili Centre told Portuguese news website Sapo: “It all happened very quickly. The police are here in the centre investigating.”