LONDON (Reuters) - Heavy rains in south-east England on Thursday (June 23) flooded streets, disrupted travel and closed two polling stations on the day Britons voted whether to remain in the European Union.

Britain's Met office said further showers and thunderstorms were expected in London and the south-east on Thursday afternoon and evening, and the Environment Agency issued flood warnings.

Lightning lit up the London sky on Wednesday night, accompanied by heavy rain. Aerial footage showed cars in floodwater in the town of Horsham, south of London.

The London Fire Brigade said it had received more than 550 emergency calls related to the weather.

In south-west London, two polling stations in the borough of Kingston Upon Thames were moved to other locations after flooding in the area, the council said.

London's underground and surrounding rail network were also disrupted by the heavy rain.