An early-morning strike on a Syrian government air base in the country's centre killed 14 fighters, including Iranian forces allied to the regime, a monitoring group said on Monday.
"At least 14 fighters were killed in the strike on the T-4 airport, among them Iranian forces," said the Syrian Observatory for Human Rights, a Britain-based war monitor.
Syrian state media had earlier reported dead and wounded in the strike, without giving casualty figures.
The T-4 base lies in Syria's central Homs province and is also known as the Tiyas airport.
Forces from regime allies Russia and Iran, as well as fighters from the Tehran-backed Lebanese Hezbollah militia, are known to have a presence there, said Observatory chief Rami Abdel Rahman.
The Observatory, which has a wide network of sources across war-ravaged Syria, said it could not confirm who carried out the attack on the T-4 base
Israel has struck targets inside Syria on multiple occasions throughout the country's seven-year war, including those linked to Iran and Hezbollah or to Assad's chemical weapons programme.
An Israeli military spokeswoman declined to comment.
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