Dozens of people were hurt in clashes in southeast Yemen between rival demonstrators supporting and opposing Tuesday's presidential election, witnesses said.
They said the trouble began late on Thursday when activists of the pro-secession Southern Movement, which opposes the election, threw stones and petrol bombs at a sit-in of pro-election activists in Mukalla, the capital of Hadramawt province.
The activists have been campaigning for the election, which will see Vice President Abdrabuh Mansur Hadi stand as the sole candidate to replace veteran strongman Ali Abdullah Saleh, who is standing down under a Gulf-brokered deal.
"Armed men of the Southern Movement" attacked their sit-in, the activists said in a statement, "injuring 60 youths of the revolution, some seriously, and setting fire to four tents" in Mukalla's Change Place, focus of the protests.
Residents also reported Southern Movement protests against the election in several other Hadramawt towns late Thursday.