The Syrian Observatory for Human Rights said 54 people died in Wednesday's explosion which struck their bus as they were preparing to return home at the end of their shift, and the number could rise further.

The Observatory said 11 of the victims from the bombing in Buraq, about 10 km (six miles) south of the city ofHama, were women. The workers were from cities of Homs, Hama and the town of Salamiyah.

Voice of Russia, Reuters