Pakistan’s caretaker prime minister on Monday defended the widely criticized delay in announcing the results of last week’s parliamentary election, saying authorities took only 36 hours to count over 60 million votes while grappling with militant attacks.

Anwaar-ul-Haq Kakar pointed out that election results had been announced after 66 hours when Imran Khan won power in 2018. He insisted that a “level playing field” was available to all political parties, including that of the imprisoned former prime minister.

Khan’s party, Pakistan Tehreek-e-Insaf, won more seats than any other, but only because its candidates ran as independents after the party was expelled from the vote. The candidates won 93 out of 265 National Assembly seats, not enough to form a government. Khan could not run because of criminal convictions that he calls politically motivated.

Kakar said people were allowed to hold peaceful protests but warned that action would be taken if rallies turned violent.

On Monday, thousands of supporters of Khan and members of other political parties blocked key highways and held a daylong strike in the volatile southwest to protest alleged vote-rigging. Separately, several nationalist and Islamist political parties in Baluchistan blocked two highways leading to Iranian and Afghan border crossings.

Jan Achakzai, a government spokesman in Baluchistan, urged protesters to “show grace” by accepting defeat and moving away from the highways.

Khan’s party and others refused to accept their defeat in dozens of constituencies. Dozens of Khan’s supporters were briefly detained in the eastern city of Lahore over the weekend while protesting alleged election irregularities.

Pakistan’s military has always cast itself as the ultimate arbiter of who becomes prime minister. Sharif was marked out as the security establishment’s preferred candidate because of his smooth return to the country in October.

Sharif spent four years in exile to avoid serving prison sentences, but his convictions were overturned within weeks of his arrival in Pakistan.