Mother arrested over killing of three young girls in Hong Kong

Police officers walk into an apartment where three children were killed (Louise Delmotte/AP)

Hong Kong police have arrested a woman accused of killing her three young daughters in a case that has shocked residents of the city where violent crime is rare.

The three girls, aged two, four and five, were unresponsive when officers arrived at their apartment after receiving a call from the woman, who told police that they had been killed by her husband.