Forest fires: are some being started deliberately?

Forest fires are raging across the northwestern Iberian peninsula, threatening homes and livelihoods.

A large fire in Mangualde in Portugal has now been brought under control.

Bombeiros em Mangualde não têm mãos a medir com tantos fogos
http://t.co/UGwiXBvWjV pic.twitter.com/sETHyHvHXU— sapo (@sapo) 10 Août 2015

80 percent of the country is experiencing severe drought conditions, low rainfall and temperatures of up to 40 degrees.

More than 28 000 hectares of scrubland have been laid waste from the beginning of 2015 until the end of July.

More than a thousand firefighters are currently battling the flames.

So far there have been no reports of any casualties.

A man has been arrested in the centre of the country on suspicion of arson.