Turkey's military says three soldiers were killed in northern Syria in an "accidental" airstrike by a Russian warplane. <br/><br/>The military says 11 other soldiers were wounded in the friendly fire incident today. According to a military statement, the Turkish soldiers were inside a building that was hit by a Russian aircraft. '<br/><br/>The statement said Russia expressed its sorrow and condolences for the incident while President Vladimir Putin called President Recep Tayyip Erdogan. <br/><br/>The incident comes after Turkey and Russia recently repaired ties that were strained by Turkey's downing of Russian jet near the border with Syria two years ago.<br/><br/>