(CNN) -- A leader of the the Gulf drug cartel -- Antonio Ezequiel Cardenas Guillan -- died Friday afternoon during a clash with security forces in the border city of Matamoros, Mexico's state media reported.
The Gulf cartel is one of Mexico's major drug-trafficking organizations. It is based in Matamoros, which is across the border from Brownsville, Texas.
The University of Texas at Brownsville and Texas Southmost College canceled classes through Saturday and said it would rework several weekend events "because of gunfire taking place across the Rio Grande".
Most of the students and faculty members have gone home, said Letty Fernandez, a university spokeswoman. The campus is about half a mile from the U.S.-Mexico border.
Sgt. Reynaldo Trevino, with the university police, said he was working at a soccer game when he heard gunfire break out.
He said the gunshots sounded so close it was "like we were there".
CNN
