A wildfire is continuing to blacken forests in northeastern Spain but authorities say that weaker winds and rising humidity are helping slow its advance.

The blaze near Barcelona, which officials say is the Catalonia region's biggest forest fire this year, had charred some 1,000 hectares (2,400 acres) by Monday.

Officials said 22 helicopters were helping efforts to bring the wildfire under control.

Some 400 people were evacuated after the fire broke out Sunday. By Monday, all but 122 had returned to their homes.

Authorities said they received no reports of injuries.

The region is known for its picturesque countryside.