New film has emerged apparently showing the aftermath of another massacre in Syria.
The amateur video posted on social media is accompanied by claims from a rebel group that it had executed 51 soldiers in the northern town of Khan al-Assal. The town was taken by rebels last week.
The video cannot be independently verified.
The UK-based opposition Syrian Observatory for Human Rights quoted activists as saying that more than 150 soldiers, including the executed troops, had been killed earlier this week.
With state media claiming new army successes in Homs, civilians caught up in the fighting continue to flee.
The UN’s refugee agency has claimed that the authorities in Egypt have been incarcerating Syrian refugees.
“The UNHCR is concerned that the Egyptian military and security personnel have been arbitrarily arresting and detaining an increasing number of Syrians including several minors and also people who are registered with UNHCR, amid growing and disturbing anti-Syrian sentiment,” said spokeswoman Melissa Fleming.
Some refugees, she added, had been accused of taking part in protests in favour of the toppled Islamist President Mohamed Mursi.
More than 90,000 Syrians are believed to have come to Egypt to escape the civil war, now in its third year.