Hundreds of firefighters were struggling to contain a wildfire in northeastern Spain that has spread over 5,500 hectares (13,590 acres) and forced the evacuation of 53 residents.
A Spanish military unit with 120 specialists joined local firefighters who had worked overnight to control the blaze that sent thick plumes of smoke over hilly terrain near the Ebro River.
The fire comes amid a heatwave that is boosting temperatures across Europe.
Mr Buch said authorities suspected the cause of the outbreak was a deposit of improperly stored chicken manure at a farm in the village of Torre de l’Espanyol which high temperatures caused to combust.
Five roads were closed to traffic in the rural area which is about 120 kilometres (75 miles) west of Barcelona.
Firefighters said that temperatures over 30C (86F), low humidity, and high winds had fanned the wildfire flames.