
Swedish Prime Minister Stefan Lofven visits the scene of a suspected terror attack on Saturday, April 8. A day earlier, a truck crashed in front of a Stockholm department store, killing four people and injuring more than a dozen others.

The scene of the attack in Stockholm.

A woman cries after placing flowers at a makeshift memorial outside the department store in Stockholm.

A police officer stands guard at the site of the attack.

A woman tosses a flower onto the memorial in central Stockholm.

Authorities work at the scene of the attack on Friday, April 7.

A medical responder moves through the scene of the attack.

Police respond to the scene of the attack.

A couple embrace after the incident.

People check on an injured person.

Police officers secure the area outside the Stockholm Central train station. Parliament and the Stockholm subway were placed on lockdown.

An injured person is put in an ambulance.

A police officer stands guard near the scene of the attack.

Onlookers at the scene were stunned and distraught.

Local media reported that the truck was hijacked as it made a delivery nearby. Eyewitnesses said it barreled down Drottninggatan (Queen Street) before it crashed into the front of a department store.

Security services launched an investigation into who was involved in carrying out the attack.