About 100 people were killed when Myanmar’s military government quashed anti-government protests in September, far higher than the 15 dead reported by the junta, Human Rights Watch said Thursday.

Several hundred people are still believed to be jailed over the protests, in addition to the 1,100 political prisoners already locked away in Myanmar, the New York-based group said in its annual report.

The protests led by Buddhist monks were the biggest challenge to military rule in nearly two decades.

Outrage over the crackdown prompted Myanmar to allow UN special envoy Ibrahim Gambari to make two visits to the country, where he was allowed to meet with detained pro-democracy leader Aung San Suu Kyi and senior military leaders.

But the report said the junta “made no concessions to international condemnation… condemning foreign interference in Burma, and blaming unrest on foreign media reports and exile radio broadcasts inciting protests.”

Meanwhile, the military government has continued to commit gross rights abuses across the country, the report said.

The military actively recruits child soldiers, sometimes as young as 10, who make up 30 percent of new recruits in some camps, it said.

Rape, forced labour, summary executions and land grabs remain widespread in ethnic minority regions were rebel armies have fought the junta for decades in one of the world’s longest-running civil wars, the group said.

The army continues to force villagers to act as human mine sweepers in border areas, where 500,000 people have been displaced by fighting, it added.

Despite international condemnation, the report noted the junta’s revenues are booming from natural gas exports, mainly to Asian countries. The regime earned 2.16 billion dollars last year from two gas fields, it said.