Current headline on thelocal.se:
LIVE: Sweden tightens borders as police make arrest after Stockholm truck attack
What we know:
- A truck drove into a crowd of people on the busy Stockholm shopping street Drottninggatan just before 15:00 on Friday.
- Four people were killed and at least 15 injured.
- Police could not confirm reports of shots being fired near the Åhlens City department store or in the city's Fridhemsplan district.
- Police have said they have arrested a person in Märsta, north of Stockholm, who could be linked to the attack. They have confirmed that the person matches an image released by police earlier on Friday, but declined to release more details.
- Swedish brewery company Spendrups, which owns the truck, said it had been stolen earlier in the day.
"During a delivery to the restaurant Caliente someone jumped into the driver's cabin and drove off with the car while the driver unloaded," communications director Mårten Lyth told the TT news agency.
- The city's subway system has resumed after being shut down, but some stations remain closed. Stockholm's central railway station was evacuated earlier in the day.
- Swedish PM Stefan Löfven has said that Sweden "has been attacked" in an apparent terrorist incident.