A number of schoolchildren had to be rescued after a watermain burst overnight and flooded several homes, leaving people trapped.
About 70 firefighters are at the scene in Blackheath, southeast London, after the alarm was raised at around 4am.
At least six homes were flooded in the area as well as the nearby Lee Green Fire Station on Eltham Road, with crews helping people escape the flood water on board rubber dinghies.