Theft Description

Somebody took the bike from house my sister  in the night Thursday 9 November2017. Evening 21.30 bikes were down in the corridor and in the morning the bikes not. I kept my kids' bikes with my sister in the house because kids went to the park. In the house lieve three families. All house is loct if somebody want go in must ring. I don't understand how somebody took the bike. Bike my son and my daughter. the wheels were locked together they are very heavy. Incident was in South Norwood.