Two houses have caught fire after being struck by lightning, as thunderstorms batter Britain following the heatwave.

Fire crews tackled the blaze in Andover, Hampshire, where the semi-detached properties’ roofs caved in on Saturday morning.

A 70-year-old woman was assessed by paramedics but did not require hospital treatment.

The incident came as storms hit the south of England, with strong winds and heavy rain forecast for the weekend.

A yellow warning for thunderstorms was put in place by the Met Office on Friday night.

Firefighters extinguish the flames the the properties in Andover

Credit: UK News in Pictures

This means there is a risk of sudden flooding of homes and businesses, as well as power cuts and travel disruption on Saturday and Sunday.

Hampshire Fire and Rescue Service used an aerial ladder and powerful water jets to gain control of the flames at the homes in Andover.

Neighbours reported hearing an "enormous bang", thought to be the lighting striking the properties, which was said to have woken up the whole street.

Firefighters used an aerial ladder to get to the properties' blazing roofs

Credit: PA

Barrie Austen, 79, said: "I saw the flickering and when I looked out I saw the roof of the semi-detached house completely ablaze and it had completely gone.

"The side that supports the roof, that collapsed as well and then the flames spread into next door."

Heavy rain of up to 50mm is due to fall in just one hour on Saturday, and up to 100mm in some spots on Sunday.

The weather shift comes after a week of extreme heat across the UK, with temperatures exceeding 30C.