35-year-old man killed, after his jeep crashes into a tree at high speed on the north side of Milwaukee.

A 35-year-old man was killed Sunday when his car crashed into a tree on Milwaukee's north side, police said.

The man was driving in the 5900 block of N. 60th St. at 4:15 a.m. when he lost control of the 1998 Jeep he was driving and hit the tree, police said.

Speed appears to be a contributing factor, police said. Milwaukee police are waiting for the Milwaukee County medical examiner's report to determine if alcohol also played a role.