Austrian investigators have found the head of a woman after earlier recovering parts of her body from two suitcases, in an apparent case of murder and suicide.

Officials said Tuesday the head was found in a block of concrete in a bag attached to the hand of a male corpse submerged in a lake. They suspect the man strangled the woman and dismembered her before drowning himself.

The male corpse and the bag were recovered by police divers from the waters of Traunsee Monday, a day after the suitcases were found floating close to lake's shore near the town of Gmunden, around 80 kilometers (50 miles) east of Salzburg.

Police estimate the ages of the two at around 70. State Prosecutor Birgit Ahammer says they have not yet been identified.