A suspected arsonist has been charged with terrorism after CCTV captured him lighting fires in Bulgaria as a wave of wildfires continues to rage across Europe.

Firefighters were battling 160 wildfires across Bulgaria on Monday, as 11 regions in the country have been put on red alert due to the high temperatures.

Shocking footage shows a 33-year-old man appearing to set fire to a verge of grass next to a pavement, as flames quickly spread up the bank. Officers arrested the man and charged him with terrorism.

Europe has been hit by a wave of wildfires and blistering heat as a dangerous combination of high winds, drought, and soaring temperatures triggers mass evacuations.

Around 90 per cent of the fires in Bulgaria have been caused by human error and negligence, said Miroslav Rashkov, the head of the interior ministry.