Two women have been killed after a knifeman went on a rampage in a Muslim centre.
Portuguese police shot a man suspected of stabbing two people to death at an Ismaili Muslim center in Lisbon, Portugal's prime minister said Tuesday.
Prime Minister Antonio Costa told reporters it was "a criminal act" and that two lives had been lost in the incident Tuesday.
The suspect is hospitalised, Costa said.
"Everything points to this being an isolated incident," Costa said, without elaborating.
The women were Portuguese staff members at the centre, Ismaili community leader Narzim Ahmad told local media.
Police made no immediate comment but said they would provide more information later Tuesday.
It has been reported that the man was of Afghan origin. He was shot in the leg and remains in custody while being treated in hospital, say reports.
In a statement, Portugal's security services said they responded to reports of an attack at around 10.57am.
“The police came across a man armed with a large knife. The attacker was given orders to stop the attack, which he disobeyed, advancing towards the police, with the knife in his hand. and in execution, the police made effective use of a firearm against the person, reaching and neutralising the aggressor," the statement reads.
Speaking to CNN Portugal, a source said "there are people injured" but refused to provide further details.
Policing has been reinforced around the hospital unit.
The Ismaili sect is a minority within Shia Islam - a group that has been attacked by extremists in countries like Pakistan.
Earlier this month, at least 56 people were left dead after a suicide bombing at a Shia mosque.
The death toll in the northwestern city of Peshawar is expected to rise substantially as many of the injured are in critical condition.
The authorities have not said who is behind the deadly and harrowing attack.
Heartbreaking images show bodies covered up outside the mosque minutes after the blast.
"We are in a state of emergency and the injured are being shifted to the hospital," police officer Mohammad Sajjad Khan said.
One witness Ali Asghar claimed they saw the attacker enter the mosque before Friday prayers and open " fire with a pistol" - picking out the worshippers "one-by-one".
And last year, an armed mob attacked a Shia shrine and a crowd of mourners killing at least 15 in Iran.
In the Iranian city of Shiraz at least 15 people died, state news agency IRNA said, as security forces clashed with protesters at the Shah Cheragh Shrine, who were marking 40 days since the Mahsa Amini died after being beaten into a coma by security.
Earlier in the day, an attack took place when Iranian security forces opened fire at mourners who gathered in Ms Amini's Kurdish home town of Saqez.
Ms Amini, 22, was detained by the morality police in Iran's capital, Tehran, on September 13 for allegedly wearing her hijab "improperly".
She fell into a coma after collapsing at a detention centre and died three days later, with multiple reports and CCTV footage suggesting officers beat her on the head with a baton.
