Police are investigating after a flood of people poured out of the back of a semi truck in Oklahoma on Monday night. 

The incident happened at around 9:30 p.m. on March 28th in McClain County near Wayne at Interstate 35 and Highway 59. 

According to News On 6, police received calls reporting people going in and out of the back of a semi truck and pulled the rig over. While conducting the stop, somewhere between 50 and 75 people jumped out of the back of the truck and fled the scene in all different directions. 

“We do have a good perimeter set up, kind of waiting to see. Just chasing calls right now,” said McClain County Undersheriff James Goins the night of the incident. “We have received a few calls of people coming up to doors, we are following up as those come in.”

Three people have been detained for questioning about the incident, but officers say at least 40 people are still at large. They believe these people are undocumented immigrants, the the trailer was involved in some sort of human trafficking.

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