Fox News-

Border Patrol agents arrested a man Wednesday after discovering 26 illegal immigrants hiding inside a tractor-trailer that was crossing into California at the U.S.-Mexico border, officials said.

Agents assigned to the El Centro Sector checkpoint on Highway 86 discovered the immigrants around 9:40 p.m. while conducting an immigration check on the 32-year-old driver, U.S. Customs and Border Protection (CBP) said in a news release.

A Border Patrol canine alerted agents to the rear cargo of the tractor-trailer. The agents said they inspected the area and found 26 people inside.