At least four people have been killed after a truck crashed into pedestrians in the centre of Swedish capital Stockholm.

The incident happened on the busy shopping street of Drottninggatan at around 3pm local time (2pm UK time) this afternoon.

The lorry is believed to have been stolen as the driver made a delivery nearby shortly before the attack.

Swedish police have confirmed they are treating the incident as a possible terror attack.

At least four people have been confirmed dead while 15 people, both adults and children, were injured - nine of them seriously.

We will bring you the very latest as this story develops.