An explosive shell has hit a funeral gathering attended by southern separatists in Yemen, killing 15 people, including children, witnesses and medical sources say.
Witnesses said the shell had been fired by a tank and blamed the army. One local army officer, who asked not to be named, told Reuters a military outpost had fired the shell by mistake, and the man in charge was being investigated - though there was no immediate comment from the defence ministry in Sanaa.
Around 40 people were also wounded in the strike on a tent where mourners had come to pay their respects to the family of a southern separatist who died earlier in the week, the sources told Reuters.
The tent had been set up inside a school in the southern province of al-Dhalea by members of the al-Herak al-Janoubi, a coalition of groups aiming to set up an independent state in the region.
President Abd-Rabbu Mansour Hadi set up a committee to investigate the incident, state news agency SABA reported, without going into further details.
Yemen is struggling to restore state authority after mass unrest ousted president Ali Abdullah Saleh a year ago.
Islamist militants strengthened their grip on parts of the country, before being pushed back by U.S.-supported military action - and southern groups stepped up their campaigns for separation.
Yemen's north and its once-Marxist south united in 1990, but civil war broke out four years later. Then-President Saleh crushed southern secessionists and maintained the union.
Elsewhere, two Islamist militants were killed in an air strike in east Yemen, residents and a local official said.
The strike hit a car carrying the militants in Hadramout province setting it on fire, they said.
