A local journalist said a “terrible” explosion had occurred in Calle Toledo, a street in a downtown area of the Spanish capital. The street has been cordoned off by first responders.

A spokesperson for the City Council of Madrid confirmed that firefighters, police and civil protection units are responding to the incident. Eight crews of firefighters have been dispatched to the area, according to local news site, TeleMadrid.

A school is reported to have been badly damaged by the explosion, and the smoke seen in videos filmed on the street is said to be coming from a nursing home next door to the building where the blast took place.