Bangladesh’s prime minister resigned and fled the country Monday after weeks of protests against a quota system for government jobs descended into violence and grew into a broader challenge to her 15-year rule. Thousands of demonstrators stormed her official residence and other buildings associated with her party and family.

Prime Minister Sheikh Hasina’s departure threatens to create even more instability in the densely populated nation on India’s border that is already dealing with a series of crises, from high unemployment to corruption to climate change. Amid security concerns, the main airport in Dhaka, the capital, suspended operations.

Violence just before and after her resignation left at least 41 people dead and about 200 others injured, according to media reports, which could not be independently confirmed. More than a dozen were reportedly killed when protesters set fire to a hotel owned by a leader in Hasina’s party in the southwestern town of Jashore.

The military chief, Gen. Waker-uz-Zamam said he was temporarily taking control of the country, and soldiers tried to stem the growing unrest. Mohammed Shahabuddin, the country’s figurehead president, announced late Monday after meeting with Waker-uz-Zamam and opposition politicians that Parliament would be dissolved and a national government would be formed as soon as possible, leading to fresh elections.

Speaking after the embattled leader was seen in television footage boarding a military helicopter with her sister, Waker-uz-Zaman sought to reassure a jittery nation that order would be restored. Experts, though, warned the road ahead would be long.

Hundreds of thousands of people poured into the streets waving flags and cheering to celebrate Hasina’s resignation. But some celebrations soon turned violent, with protesters attacking symbols of her government and party, ransacking and setting fires in several buildings.

“This is not just the end of the tyrant Sheikh Hasina, with this we put an end to the mafia state that she has created,” declared Sairaj Salekin, a student protester, on the streets of Dhaka.

Protests began peacefully last month as frustrated students demanded an end to a quota system for government jobs that they said favored those with connections to the prime minister’s Awami League party. But amid a deadly crackdown, the demonstrations morphed into an unprecedented challenge to Hasina, highlighting the extent of economic distress in Bangladesh, where exports have fallen and foreign exchange reserves are running low.

Waker-uz-Zaman promised that the military would launch an investigation into a crackdown that had left nearly 300 people dead since mid-July, some of the country’s worst bloodshed since the 1971 war of independence, and which had fueled outrage against the government. Nearly 100 people, including 14 policemen, were killed Sunday, according to the country’s leading Bengali-language daily newspaper, Prothom Alo. At least 11,000 people have been arrested in recent weeks.

“Keep faith in the military. We will investigate all the killings and punish the responsible,” he said.

The military wields significant political influence in Bangladesh, which has faced more than 20 coups or coup attempts since independence in 1971. But it was not clear if Hasina’s resignation or the military chief’s calls for calm would be enough to end the turmoil.

Nahid Islam, a top student coordinator, told reporters late Monday that the movement would propose an outline for the new interim government — and they would not accept any other solution.

Throughout the day, people continued to pour into and out of Hasina’s official residence, where they set fires, carried out furniture and pulled raw fish from the refrigerators. They also massed outside the parliament building, where a banner reading “justice” was hung.

Crowds also ransacked Hasina’s family’s ancestral home-turned-museum where her father, Sheikh Mujibur Rahman — the country’s first president and independence leader — was assassinated. They torched major offices of the ruling party and the country’s two leading, pro-government TV stations — both of which were forced to go off air.