BUENOS AIRES — Many Argentines armed and barricaded themselves in their homes and stores in fear of looting mobs on Tuesday as the nation’s plans to celebrate 30 years of uninterrupted democracy were marred by police strikes for higher pay.
Politicians struggled to assert their authority over security forces even as they agreed to salary hikes so steep that many provinces won’t be able to pay their debts at month’s end, adding stress to an economy already suffering from 25 percent inflation.
With police abandoning their posts, and in some cases allegedly encouraging violence to force the authorities’ hands, most of Argentina’s 23 provinces have endured long nights of chaos since the uprisings began last week, with roving groups breaking into storefronts and fighting over the merchandise.
Hospital and political authorities said at least seven people have been killed, including a police officer in northern Chaco province who was struck by a bullet below his protective vest Tuesday, and a store owner whose burned body was found in the remains of his looted market in Buenos Aires province last week.
The others allegedly died while looting. One young man was electrocuted while stealing from an appliance store in a rainstorm. Another fell off a motorcycle while carting off a television. A third died in a fistfight over stolen goods inside a ruined store.
Hundreds of others have been injured and thousands of businesses damaged in the scattered violence. And while most officers were back at work after securing new deals, police uprisings continued Tuesday in several cities. Commerce has been shut down in many places, and even some public hospitals were turning away nonemergency patients for fear of being looted.
With consumer prices soaring, Argentines are accustomed to annual labor protests in which workers threaten chaos if they don’t get their way. But strikes by armed police are more ominous in a country where social chaos, police crackdowns, and spiraling violence ushered in the 1976 military coup and a world-record debt default in 2001.
‘‘The Argentine people want peace and harmony. Demands of this nature go beyond any expected limits,’’ President Cristina Fernandez’s Cabinet Chief, Jorge Capitanich, said Tuesday. ‘‘To be a police officer means carrying weapons to protect the citizens, not to generate anxiety among the people and use extortion against their elected leaders.’’
To free up cash for the raises, Capitanich announced a three-month delay in payments most Argentine provinces owe this month to the federal government on debts refinanced two years ago.
But human rights groups warned against giving in too easily to the security forces’ demands.
The deal Buenos Aires Governor Daniel Scioli reached with rebellious officers Monday night includes an amnesty for rule-breaking officers, making them eligible for 14,000 promised promotions this month that will raise salaries far above the base pay he promised. The deal also lets officers who retired on 90 percent pay to return to work at twice their old salaries.
‘‘The weapons given to security forces to protect citizens’ life and property cannot be used to force decisions by constitutional powers,’’ warned the Center for Legal and Social Studies, a human rights group that has closely tracked police abuse. ‘‘We think it’s urgent that the security forces stop intensifying the violence and feeding incidents that pose very high risks to our society and its institutions.’’
Tuesday marked three decades since President Raul Alfonsin’s inauguration ended the 1976-1983 dictatorship.