WASHINGTON - An air strike carried out by US forces on Thursday in Idlib, Syria, killed several al Qaida militants, US Central Command said in a statement. 'Idlib has been a significant safe haven for al Qaida in recent years,' the statement said, making no mention of civilian casualties. On Thursday a Britain-based war monitor said warplanes struck a mosque in the rebel-held village of al-Jina, southwest of Atarib near Aleppo, killing at least 42 people and wounding dozens.