Amid widespread protests a day after the killing of a popular singer, Peru’s president on Monday declared a state of emergency in the capital, ordering the deployment of soldiers to assist police in quelling a surge in violence.

President Dina Boluarte’s government issued a decree saying the state of emergency would last for 30 days and that authorities would restrict some rights, including freedom of assembly and movement. It means police and the army will be able to detain people without a court order.

Peru has seen a surge in murders, violent extortions and attacks on public places in recent months. Between January 1 and March 16, police reported 459 murders and 1,909 extortions in January alone. But the anger has only intensified since the killing of Paul Flores, 39, the lead singer of the cumbia band Armonia 10, on Sunday.

In Congress, opposition lawmakers have called for a no-confidence motion against Interior Minister Juan Jose Santivanes over what they say is a lack of a plan to combat the rising violence. The vote is expected to be debated in the full Congress later this week.

Flores was shot dead early Sunday by gunmen who attacked the bus he and his bandmates were traveling on after a concert in Lima. Cumbia is a style of Latin music in which people dance to the rhythm of drums, maracas and other instruments.

The attack on the popular singer was not the only violent incident over the weekend. On Saturday, an object exploded in a restaurant in the capital, injuring at least 11 people.

The Bolivarian government had previously declared a state of emergency in an attempt to quell the violence between September and December.