Firefighters battled to contain a fast-spreading wildfire north of Spain's capital, Madrid, on Sunday.

The country is still reeling from one of the deadliest wildfires in modern times that killed 13 people and destroyed 7,000 hectares in southern Almeria province earlier this month.What do we know?

The latest fire started on Thursday in central Spain's Guadalajara province, which includes the Sierra Norte Natural Park.

The area is described as a forest-covered, mountainous region that is home to endangered species, including eagles and wolves.

El Pais newspaper reported that the fire had burned through more than 13,000 hectares by Sunday.