Laura Treviño, 31, Adriana Treviño, 23, and Evelia Treviño, all U.S. citizens, entered their guilty pleas Thursday in federal court

Laura Treviño pleaded guilty to a conspiracy charge of drug smuggling. Adriana and Evelia Treviño pleaded guilty to possession with intent to distribute cocaine.Laura Treviño, 31, Adriana Treviño, 23, and Evelia Treviño, all U.S. citizens, entered their guilty pleas Thursday in federal court before U.S. District Judge Andrew S. Hanen.Their pleas come more than a week after their mother, Maria Guadalupe Venegas Vda. De Trevino, 60, pleaded guilty to conspiring to possess cocaine.
The women were arrested June 18 at the B&M International Bridge in Brownsville after federal agents found cocaine on them.According to authorities, the women were traveling back to Brownsville from Matamoros by way of the B&M International Bridge. During inspections, the agents noticed discrepancies on their 2006 Mercedes Benz.
Authorities said the women tried to flee after a narcotics dog reportedly detected an odor coming from their vehicle.