WASHINGTON (Reuters) – The Organization of American States’ human rights body on Tuesday called on Venezuela to investigate “improper use of force” during clashes that left two dead after the suspension of an anti-government TV station.

The Inter-American Commission on Human Rights expressed “serious concern” over the clashes among police, students and supporters of President Hugo Chavez on Jan 25, when a 15-year-old pro-Chavez demonstrator was killed as well as an older student at rallies in the Venezuelan city of Merida.

At least nine police officers and several protesters were also injured in violence at an anti-government march in the city.

“There were reported to be several wounded persons, including members of the security forces and protesters as a consequence of the improper use of force on the part of the authorities and the actions of the protesters themselves, both in favor of and against the government,” the commission said.

According to initial reports, the two youths were shot dead by unknown gunmen in separate incidents and not in clashes with security forces.

Anti-riot police used tear gas and plastic grenades to break up several protests across Venezuela last week after the suspension of the RCTV cable station, which was criticized by media freedom groups and the U.S. government.

The rights commission called on Chavez’s left-wing government to investigate rights violations, bring those responsible to justice and make reparations.

Chavez denied RCTV a renewal of its broadcast license in 2007, triggering large protests in the OPEC nation.