Police: Small plane, helicopter crash in southern Germany

German police say a small aircraft has crashed midair with a helicopter northwest of Stuttgart.

Police in Karlsruhe told the dpa news agency Tuesday the two aircraft crashed outside of Philippsburg, about 100 kilometers (60 miles) from Stuttgart.

Police say it's not yet known how many people were on board the two aircraft or whether there were any casualties.

Police could not immediately be reached for further details.