Mobile phones in Portugal have been sent a text warning of the extreme risk of wildfires as the country braces for its third heatwave of the summer, writes BBC.

The country has entered a state of alert, with temperatures expected to reach 38C and strong winds predicted in the coming days. The messages warned those in rural areas not to start any form of fires.

The government has also restricted access to forests and banned the use of machinery to avoid sparks. The state of alert came into force at midnight on Sunday and will last until Tuesday.

Some 92,000 hectares of land have already burned this year, according to government estimates, with heatwaves and drought producing tinder-like conditions.