ISIL on Saturday claimed responsibility for Cambrils car attack, after saying its "soldiers" were also behind Thursday's Las Ramblas car rampage, AFP reported citing the jihadist organization's propaganda agency.
One woman was killed and other six people injured after five attackers jumped out of a car and began attacking people randomly.
Police have killed all five attackers in Cambrils on Friday. They were believed to be part of a terror cell consisting of at least 12 people behind the two attacks.
Spain's interior minister Juan Ignacio Zoido said on Saturday that the cell has been "completely dismantled," as police is still hunting for one remaining suspect.
The Spanish government has decided to maintain its anti-terrorism alert level at four on a scale of 5, in the wake of double attacks in Barcelona which killed 14 people and injured over a hundred.