Police in Kassel, Germany, are hot on the heels of a thief who ambushes women and makes off with their fancy shoes.

The man has attacked 12 women, between 20 and 40 years old, in the small central German city. Some needed treatment for shock, but most reacted calmly."He tackles women walking alone at night, pulls their shoes off and escapes into the darkness," said Gerhard Dippmann, a Kassel detective.

"He is only interested in their shoes. The women have not been injured and no money has been stolen."