Around 200 illegal immigrants including at least 40 unaccompanied minors were apprehended in Mission, Texas after being smuggled into the U.S., according to border officials.

The illegal immigrants were accompanied across the border by “human smugglers,” according to Customs and Border Protection (CBP) Rio Grande Valley Chief Patrol Agent Brian Hastings. It was around 43 degrees in Mission, Texas, Wednesday night at 8 p.m. CST when Hastings tweeted about the apprehensions, according to weather tracker Local Conditions.

“Nobody comes across that river without a smuggler. Nobody just walks up to the bridge and goes across. A smuggler put them in a raft and paddled them across, probably told them to go up to that road, take a left until you walk into an agent,” CBP Public Affairs Officer Rod Kise told the Daily Caller News Foundation.