Romanian Prime Minister Victor Ponta has resigned, a day after some 20,000 people took to the streets to protest against a nightclub fire that left 32 people dead.
Friday night's blaze in Bucharest started when a band performing at the club set off fireworks.
Demonstrators called for Mr Ponta to step down, complaining of government corruption and poor safety supervision.
Mr Ponta is already facing trial on corruption charges.
In September, he became the first sitting Romanian prime minister to go on trial over allegations of fraud, tax evasion and money laundering.
He has denied the charges, accusing prosecutors of being "totally unprofessional".