Russian police have arrested a man suspected of killing and dismembering his six young children along with his wife and mother.

The suspect, Oleg Belov, was wounded by police gunfire while resisting arrest and remained in stable condition Wednesday after a surgery, according to local health officials.

The federal Investigative Committee said the dismembered remains of the children, all under the age of 6, were discovered Tuesday in the family's apartment in the city of Nizhny Novgorod. The body of his pregnant wife also was found in the apartment.

At a separate location, police found remains of a woman believed to be his mother.

Police arrested the suspect late Tuesday in the Vladimir region, where he was hiding in his mother-in-law's home. Police suspect he planned to kill her too.