Commuters heading into downtown Honolulu this morning are stuck in a major traffic mess, which is bad news for anyone driving the H-1 or nearby routes.

All eastbound lanes of the H-1 have been closed at Liliha since early morning because of a police investigation, and Liliha Street is shut down too.

Traffic is backed up badly: the jam stretches from the Middle Street merge all the way through the Wilder Freeway and up to the top of Red Hill, with slow surface streets as well.

Normal backup routes like Dillingham Boulevard and King Street aren't much help either, since Dillingham is down to one lane for rail construction and Nimitz Highway is also crawling near Ewa.

The rail-based Skyline system is running smoothly and may be the fastest way into town right now.

Outlook: Expect the closure and heavy delays to continue for several more hours while police finish their investigation.