A munitions blast killed 31 regime and allied fighters at a military airport in central Syria Saturday, the Britain-based Syrian Observatory for Human Rights said, increasing an earlier toll.
State news agency SANA reported earlier that a "technical fault during the transport of expired ammunition" had killed an unspecified number of victims at the Shayrat airbase in Homs province, Arab News reports.
The Shayrat airbase is one of the regime's most significant installations in the centre of the country.
