"We now know that a British man was killed during the attack in Stockholm".
The suspect detained over Friday's deadly truck attack in Stockholm is a 39-year-old Uzbekistan-born man, Swedish prosecutor Hans Ihrman confirmed on Saturday.
The 39-year-old suspect in the Stockholm attack "showed interest for extremist organisations like IS", police chief Jonas Hysing said.
"The Migration Agency rejected it in June 2016 and also decided that he was to be expelled", he added.
Police said he was the person whose grainy picture the police released earlier in the day.
The Swedish department store that was rammed by a stolen beer truck, leaving four people dead and 15 injured in Stockholm, said it was sorry for announcing it was reopening Sunday to sell damaged goods at a "reduced price".
The court official said the four people killed had been identified and their families notified.
Police have arrested two people in connection with the rampage, one of them thought to be the driver of the truck, according to the reports.
In the meantime, police are still on guard in Stockholm and parts of the capital city remain closed to the public. Paris' Eiffel Tower went dark for five minutes Friday to honor the victims of the attack. Police said he was known to authorities some years ago, but as a "more marginal character".
The Swedish national broadcaster SVT reported that a bag with explosives had been found in the truck used in the attack.
Several police cars parked near the scene were also covered in flowers by Swedes, who widely praised the emergency crews' speedy response to the attack.
Ten of those injured were still being treated in hospital, with two people in intensive care and another two in a serious condition.
After a manhunt was launched in pursuit of the attacker, the suspect was detained early Saturday morning in Marsta, located north of Stockholm and near the city's global airport.
On Sunday, thousands of people gathered in central Stockholm for a "Lovefest" vigil against terrorism, and laid flowers outside the Ahlens shop in tribute.
A failed suicide bombing in December 2010 killed an attacker only a few hundred yards from the site of Friday's incident.