A stun grenade was among the objects hurled by fans as the last-16 second-leg encounter in the regional competition at the Libertadores de America stadium was initially suspended and then abandoned.

In shocking and chaotic scenes, one fan of the Chilean visitors jumped from the stands to escape attacking opposing supporters after being cornered.

Home supporters beat and stripped some visiting fans of their clothes, an AFP reporter at the scene said.

The violence had flared at halftime when fans of the Chilean side began throwing stones, sticks, bottles and seats at a section housing home supporters.

“We have 90 people detained outside the stadium because they tried to cause trouble and they have already been taken to the police station,” a source from the security ministry told AFP.

An Independiente spokesman said that 10 people were injured.

The match was suspended in the 48th minute with the scores tied at 1-1, before being abandoned.

The Chilean side won the first leg 1-0.