Sri Lanka has been in the throes of its worst-ever economic crisis for about a month now. The county has been experiencing acute shortages of fuel and electricity along with skyrocketing prices of essential commodities.

Thousands of people have been protesting against the ruling government over the same. However, the Rajapaksa brothers - President Gotabaya Rajapaksa and Prime Minister Mahinda Rajapaksa have consistently defied calls for their resignation amid the crisis. Until today.

On Monday, Prime Minister Mahinda Rajapaksa resigned from his post. This came after violent clashes erupted between pro- and anti-government protesters outside President Gotabaya Rajapaksa's office in Colombo.

Meanwhile, Sri Lankan MP Amarakeerthi Athukorala of the ruling party and his personal security officer lost their lives amid a similar clash in the northwestern town of Nittambuwa.

Here's all that happened in crisis-hit Sri Lanka on Monday in chronological order.

A violent clash erupted outside President Gotabaya Rajapaksa's office following reports that Mahinda Rajapaksa may offer to step down as prime minister. Pro-government groups attacked anti-government protesters and more than 150 people were injured in the ensuing violence.

Following the violence outside President Gotabaya Rajapaksa's office, the government imposed a nationwide curfew and deployed army troops in the capital.

In the aftermath of the violence, Sri Lankan Prime Minister Mahinda Rajapaksa resigned from his post on Monday.

Sri Lanka's health minister Prof Channa Jayasumana also handed over his letter of resignation to the President.

Many parts of Sri Lanka erupted in violence after mobs supporting former PM Mahinda Rajapaksa attacked peaceful protesters following his resignation. The police also fired tear gas to disperse protesters.

The public turned their wrath on pro-Rajapaksa supporters as they were leaving the capital to go back home. Their vehicles were stopped and attacked in many towns.

Additionally, the homes of several ministers and ex-ministers were attacked and set on fire.

The Bar Association of Sri Lanka requested the public to remain calm and said it would initiate legal action against those responsible for the violence on Monday. The situation in the country remained tense as of Monday night.

In one violent clash, Sri Lankan parliamentarian Amarakeerthi Athukorala and his personal security officer died on Monday in the northwestern town of Nittambuwa.

He belonged to the ruling party of the Rajapaksas, the Sri Lanka Podujana Peramuna.

According to the police, he was surrounded by anti-government groups. The locals said that gunfire came from his SUV and angry mobs then toppled his car. He reportedly took refuge in a building, where he died by suicide.

The lawmaker and his personal security officer were found dead, the police said.

In a shooting incident in Nittambuwa, three people were injured and one is in critical condition at present.

(With inputs from agencies)