STORY: Mexico's senate erupted into violence on Wednesday (August 27) with punches, pushing and shouting after an opposition party leader grabbed the chamber's president as the session was wrapping up.

Alejandro "Alito" Moreno, head of the opposition Institutional Revolutionary Party (PRI), came at senate president Gerardo Fernandez Norona, of the ruling Morena party, as lawmakers were singing the national anthem to mark the end of the day's hearing.

The fight broke out after a "difficult debate" about the presence of armed forces from other countries in Mexico, Fernandez Norona later told a press conference.

In video from the Mexican Congress, Moreno could be seen coming up to Fernandez Norona and grabbing Fernandez Norona by the arm. Finally, the two begin to push each other, with Moreno knocking over a photographer in the process.

Fernandez Norona said he would call an emergency session for Friday (August 29) and would propose expelling Moreno and three other PRI lawmakers for the fight.

DESCRIPCIÓN DE IMÁGENES

VIDEO SHOWS: MEXICAN SENATE PRESIDENT, GERARDO NORONA AND OPPOSITION LAWMAKER, ALEJANDRO "ALITO" MORENO FIGHTING AT THE END OF CONGRESS SESSION

EDITORS PLEASE NOTE: HEADLINE AND STORY HAVE BEEN UPDATED TO MATCH REUTERS' WIRE. VIDEO HAS NO CHANGES.

RESENDING WITH COMPLETE STORY

SHOWS: MEXICO CITY, MEXICO (AUGUST 27, 2025) (MEXICAN CONGRESS TV - Access all)

1. OPPOSITION LAWMAKER, ALEJANDRO "ALITO" MORENO, JOINING MEXICAN SENATE PRESIDENT, GERARDO NORONA AND INTERRUPTING MEXICAN ANTHEM

2. ALEJANDRO "ALITO" MORENO PUSHING NORONA

3. TV ANCHOR SPEAKING WITH BLURRED FIGHT CONTINUING IN THE BACKGOUND