13 killed, 50 injured as police arrest a suspect
Police said a white van mounted the pavement of the main tourist area in the city, hitting several people.
Sky News, citing Catalan interior minister Joaquim Forn, said at least 13 persons were killed in the incident which has been declared a terror attack.
The van came stopped at the entrance to the Liceu metro station and the occupants escaped and ran off into the streets nearby, a local newspaper reports.
The interior minister was also said to have confirmed that 50 people were injured in the attack.
One TV station said two armed men entered a Turkish restaurant and took hostages, but Forn denied this.
Police had said they were looking for a man of 5ft 5ins (1.7m) in height, wearing a white shirt with blue stripes.
It was gathered that the van used in the attack is a Fiat, that was hired from an address in Santa Perpetua Of the Mogoda about five miles north of the city.
El Pais, a Spanish newspaper has identified a man who the Civil Guard says is responsible for the attack.
A Facebook account says he is from Marseilles and lives in Ripoll, Catalonia, about 50 miles north of Barcelona.
JOIN OUR PULSE COMMUNITY!
Eyewitness? Submit your stories now via social or: