KARACHI, Pakistan — Pakistan’s newly formed parliament elected Shehbaz Sharif on Sunday as prime minister for a second time, three weeks after uncertain national elections caused delays in the formation of a coalition government.

He beat Omar Ayub, the candidate backed by jailed former Prime Minister Imran Khan, who secured 92 votes. Sharif returns to the role he held until August when parliament was dissolved ahead of the elections and a caretaker government took over. No single party won enough seats to form government on their own.

“Shehbaz Sharif is declared to have been elected the prime minister of the Islamic Republic of Pakistan,” National Assembly Speaker Ayaz Sadiq said, after announcing Sharif had secured 201 votes, above the required 169 votes in the house.

The declaration was met with loud protests from the Sunni Ittehad Council (SIC) party backed by Khan. The lawmakers called for Khan’s release and shouted slogans alleging Sharif had come to power through electoral rigging.

In a wide-ranging speech, Sharif touched on a number of topics, including the need for economic reforms as well as international relations, but stopped short of announcing definitive changes in policy.

“The work is difficult, but it is not impossible,” he said of the effort to pull Pakistan from multiple crises.

He invited the opposition for talks about reconciling political and policy differences.

SIC continued to protest throughout Sharif’s speech, holding up posters with pictures of Khan and chanting “mandate thieves.”

The Feb. 8 election was marred by a mobile internet shutdown, arrests and violence in its build-up and the unusually delayed results triggered accusations that the vote was rigged.

Sharif, 72, is the younger brother of three-time Prime Minister Nawaz Sharif, who spearheaded their Pakistan Muslim League-Nawaz (PML-N) party’s election campaign.

Candidates backed by Khan gained the most seats but the PML-N and the Pakistan Peoples Party (PPP) agreed to form a coalition government, which enabled Shehbaz Sharif to be elected as prime minister as his brother stepped aside.

“It’s not the first time Shabaz Sharif has become PM of Pakistan without actually being elected. But this time around the nation will not allow him to get away with stealing their mandate. This is only going to make Pakistan nose further economically, causing further deterioration as a nation,” Khan’s close aide Zulfikar Bukhari told Reuters.

In his previous term, Sharif’s government was able to negotiate a critical International Monetary Fund (IMF) deal, but the process was mired in challenges, and measures required by the agreement — which expires in April — have contributed to rising prices and added pressure on poor and middle-class households.

The new government will have to immediately start talks with the IMF for the next agreement to shore up the country’s economy whilst also dealing with growing discontent over deepening poverty.

The government will also have to grapple with ongoing challenges from Khan’s supporters.