The US military on Tuesday backed up Turkey's claim that Turkish pilots had warned a Russian jet 10 times - but failed to get a response - before shooting it down .<br />"We were able to hear everything that was going on, these (communications) were on open channels," military spokesman Colonel Steve Warren said.<br />Asked if he could confirm reports 10 warnings were issued by Turkish pilots without response, Warren said: "I can confirm that, yes."<br />He added it was not immediately clear on which side of the Turkish-Syrian border the Russian jet had been flying; Turkey claims the jet breached its airspace, while Russia argues it was flying over Syria.
