DHAKA: Four Russian cruise missiles fired at Syria from the Caspian Sea landed in Iran, unnamed US officials say.

It was unclear whether the missiles caused any damage, they said, reports BBC

On Wednesday, Russia said it had fired 26 missiles at 11 targets in north and north-west Syria - about 1,500km (930 miles) away. On Thursday, it reiterated that all the rockets hit their targets.

The news came as Nato renewed assurances to defend its allies in view of Russia's "escalation" in Syria.

Russia's ambassador to Ankara had earlier been summoned three times in response to recent violations of Turkey's airspace. Turkey is a Nato member.

The military alliance is also boosting its response forces to be able to deploy troops speedily.

In other developments:

    Russia's defence ministry says the latest series of air strikes hit 27 targets early on Thursday - and that they all belonged to IS
   
US Secretary of State John Kerry tells his Russian counterpart Sergei Lavrov in a phone call that the two countries must move forward with technical talks on avoiding accidents in Syria
  
 Ukraine's President Petro Poroshenko said that "Russia wants to create a belt of instability from Syria to Ukraine"

BDST: 1210 HRS, OCT 09, 2015
RS