OKLAHOMA CITY - Emergency crews are on the scene of an injury crash on the southbound side of Interstate 235 near the off ramp to NW 23rd St.

A two-crash first occurred on the southbound side of I-235. Then it appears as though rubbernecking caused a two-car collision in the northbound lanes.

Traffic on both north and south I-235 is limited to one lane. The crash has caused traffic in the area to be backed up for at least two miles. 

EMSA is on the scene. The cause of the initial crash has not yet been determined.

Keep checking with News 9 and News9.com for more information.