The victims, in their 20s and 40s, were inside the Ismaili Centre, on Avenida Lusíada, when a man entered the space with a knife.

In a statement, the PSP reported that the attack took place at 11:00 am and that it was carried out by "a man armed with a large knife", with the PSP shooting at the suspect in the leg, who is now at the Hospital de San José, Lisbon.

According to the PSP, the attack "with a bladed weapon" on the Ismaili center was reported to the police at 10:57 am, with the first agents who responded to the occurrence arriving at the scene a minute later.

“The police came across a man armed with a large knife. Orders were given to the attacker to cease the attack, which he disobeyed, advancing towards the policemen, with the knife in his hand”, revealed the PSP, adding that in the face of this “serious threat”, the agents shot at the attacker, “hitting and neutralising the aggressor”.

In a statement sent to Lusa, the president of the National Council of the Ismaili Muslim Community, Rahim Firozali, revealed that the attack took place when classes and other activities were taking place at the Ismaili Centre, but said he did not know the motivations of the man who entered the center's premises.

At the moment, investigations by the Judiciary Police are ongoing.

The aggressor was transported to Hospital de São José (Lisbon), where he is being treated for injuries caused by the intervention of the PSP.

A source from the National Institute of Medical Emergencies (INEM) contacted by Lusa said that the alert was given at 10:53 am: “There are two dead on record and two seriously injured, one of whom was taken to the Hospital de São José and the other, by their own means, to the Hospital of Santa Maria.”

The PSP has appealed for the serenity and tranquillity of citizens, noting that "the necessary staff were mobilised for the implementation of adequate and urgent security measures".