UPDATE (6:10 p.m.): I-25 southbound has reopened to traffic, though heavy backups remain.

EL PASO COUNTY, Colo. — I-25 southbound remains closed between Mesa Ridge Parkway and US 85 due to a crash involving six vehicles.

Colorado State Patrol responded to the crash at mile marker 127 just after 2 p.m. and requested assistance from Fountain Police Department, Fountain Fire Department, Fort Carson Fire Department, and multiple towing companies.

A total of six vehicles were involved in the crash, including one tractor trailer and one pickup truck pulling a tiny-house, which completely blocked the southbound lanes of I-25. One person was transported to a hospital for unknown injuries.

The interstate remains closed as of 4:45 p.m. and is causing major backups on the interstate. A detour is in place, though CDOT advises alternate routes. In photos sent in from viewer Anthony Krepel, roads appear wet due to weather. Use caution in the area as crews work to clear the accident.

The cause of the crash is under investigation.