Nato has urged Russia to end air strikes "on the Syrian opposition and civilians", days after Moscow began raids to support Syria's government. Moscow says it is targeting Islamic State and other Islamist positions, but US-led allies and Turkey say government opponents are targeted. Turkish F-16 fighter jets were scrambled after a Russian plane entered Turkey's air space on Saturday. Russia said the violation was for just a few seconds and due to poor weather. Saturday's interception took place near Yayladagi in the southern Hatay region, Turkey says. The foreign ministry in Ankara said it had summoned the Russian ambassador to issue a "strong protest". www.bbc.