A key suspect implicated in the Spanish terror attacks which killed 14 people is dead, according to police sources.

Four men were reportedly being hunted by authorities in connection with the deadly vehicle assaults in Barcelona and Cambrils.

Moussa Oukabir, who is said to be 17 or 18 years old, was suspected of using his brother’s documents to rent the van which ploughed through pedestrians in the popular Las Ramblas shopping area.

A union official for Spain’s Civil Guard told the Associated Press that he was one of five suspected terrorists killed following the attacks.

Mossos, Catalonia’s police force, said on Friday evening that it had identified those shot by police but did not confirm their names.

Some 34 nationalities were among almost 130 people wounded in the attacks in Las Ramblas on Thursday and in Cambrils, a seaside town 70 miles to the south west, early on Friday.

Local authorities have identified six of the victims of the Barcelona attack as an Italian, one Portuguese, three Spanish and one Spanish-Argentine.

The victim of the second assault in Cambrils has been identified as a Spanish woman.

Prime Minister Justin Trudeau said one Canadian was killed and four injured during the attacks.

He said in a statement: “We join Spain and countries around the world in grieving the senseless loss of so many innocent people.

“We must stand firm against the spread of hate and intolerance in all its forms. These violent acts that seek to divide us will only strengthen our resolve.”