LUANDA: Angolan President Joao Lourenco praised security forces Friday for quelling unrest that claimed 30 lives over two days but rights groups accused them of killing “defenseless people.”

Dozens of shops and warehouses in Luanda were looted and vehicles attacked on Monday and Tuesday when a strike against a fuel price hike descended into some of the worst violence in the oil-rich country in years.

The unrest spread to several provinces and police said that by late Thursday they had confirmed 30 deaths, including of a police officer, with more than 270 people injured, among them 10 members of the defense and security forces.

The police did not say what caused the deaths but civil society groups and opposition parties blamed the security forces, who are regularly accused of using excessive force against demonstrators.

In his first public comment on the situation, Lourenco said “law enforcement acted within the framework of their obligations and therefore the order was promptly restored.”