Officials say at least twelve people were killed in a crush at a football stadium in El Salvador’s capital, San Salvador.

The event occurred at Cuscatlán Stadium during a match between the local team Alianza and the Santa Ana-based squad Fas.

The game was later called off.

President Nayib Bukele called the incident “unprecedented” and stated a “exhaustive investigation” will be initiated.

Police had previously stated that seven men and two women had been killed, with all of the deceased being above the age of 18.

According to reports, the incident occurred when a huge number of people attempted to enter the arena after the gates had been closed.

Officials believe some spectators were offered bogus tickets and have launched an inquiry.

Local media said that people were attempting to tear down barricades at the stadium’s entry.

The match was suspended after an apparent ruckus in the stands, according to a livestream of the match aired on YouTube. People are afterwards seen being carried away on stretchers by rescue personnel.

Fans may also be seen waving their shirts at those on the ground in an attempt to calm them down.

“It was an avalanche of fans who overran the gate,” a first-aid volunteer with the Rescue Commandos told journalists. “Some were still buried beneath the metal in the tunnel.” Others made it to the stands and then to the field before being suffocated.”

President Bukele stated that “everyone” including teams, managers, stadium authorities, the league, and the federation will be probed.

“Whoever the culprits are, they will not go unpunished,” he stated, according to comments uploaded on Twitter by his press secretary.

Officials further stated that 90 people were being treated for “multiple traumas” and that men, women, and children had been treated.