BUCHAREST, Romania — Romanian Prime Minister Victor Ponta announced the resignation of his government Wednesday following huge protests in the wake of a nightclub fire that killed more than 30 people. Witnesses said the fire at the Colectiv in Bucharest broke out during a heavy-metal concert in the basement club when a spark ignited foam decor, sending panicked people stampeding for the single exit. President Klaus Iohannis will name a prime minister to form a government, which needs to be approved by Parliament. Deputy leader of the opposition Liberal Party, Catalin Predoiu, hailed the resignations. Party co-leader Alina Gorghiu called for early elections and said the party wanted a broad political agreement on a solution for the political crisis.