SAN LUIS, Ariz. — Authorities at the Port of San Luis have arrested a 25-year-old woman attempting to cross the Arizona border with 48 pounds of methamphetamine.

The unidentified woman was travelling with four young children Monday when U.S. Customs and Border Protection officials referred her vehicle for a secondary inspection.

A drug-sniffing dog alerted officers to multiple packages of suspected narcotics in the vehicle’s rocker panels.

The drugs turned out to be about $144,000 worth of methamphetamine.

Officers arrested the woman for narcotics smuggling and turned her over to U.S. Immigration and Customs Enforcement’s Homeland Security Investigations.

Authorities also seized the drugs and vehicle while the four children were turned over to a family member.