8:45 a.m. update: All lanes of the freeway have been reopened, the Washtenaw County sheriff's department reports.

• Updated story: Ann Arbor man killed in crash on US-23

Northbound US-23 at the west triple-decker intersection with M-14 on the north side of Ann Arbor remains closed after a crash this morning, Washtenaw County dispatchers said.

The crash involves two vehicles and happened just before 3 a.m., a dispatcher said.

Michigan State Police are investigating. Ann Arbor Township firefighters also responded. Neither agency could immediately be reached for comment.

The Washtenaw County Sheriff's department put out an alert on the crash at 4:49 a.m., recommending the following detours:

Exit northbound US-23 at Plymouth Road, travel east to Dixboro Road, head north on Dixboro Road to North Territorial Road, then travel west on North Territorial Road to US-23.

Exit westbound M-14 at Whitmore Lake Road, head north on Whitmore Lake Road to North Territorial Road, then travel east on North Territorial Road to US-23.

Traffic slowdowns are shown in yellow and red on the map.