ANKARA/MOSCOW: Turkey recovered the body of a Russian pilot from northern Syria and presented it to Russian diplomats on Sunday, five days after shooting down his warplane in an incident that wrecked relations between two of the main powers involved in Syria’s war.

A coffin carrying Oleg Peshkov arrived by ambulance on the tarmac of Hatay Airport in southern Turkey near the Syrian border, a Reuters photographer said.

It was flown to the capital Ankara, where according to Russia’s RIA news agency it was met at an airfield by Moscow’s ambassador and military attache. The Russian Embassy refused to comment.

The shooting down of the Russian fighter jet by NATO-member Turkey, the first known incident of its kind since the Cold War, has damaged efforts to forge a united front against Daesh in the weeks.

The navigator of the two-seat jet survived but another Russian service member was killed rescuing him from northern Syria.

Turkish Prime Minister Ahmet Davutoglu said on Sunday that Peshkov’s body had arrived in Turkey overnight, but gave no further details of how it was recovered or brought across the border. Davutoglu called for more military cooperation to prevent future incidents.

“Communication and coordination in Syria operations is needed in order to prevent further incidents, because two different coalition groups are conducting operations in Syrian air space always risk leading to similar incidents,” he said before getting on a plane to Brussels for a meeting on the migrant crisis with EU leaders.

Russia’s Sports Minister Vitaly Mutko said on Sunday Moscow would not boycott international sporting events held in Turkey, but would require maximum security and would limit training trips by Russian athletes there, RIA reported.

Pro-government newspaper Sabah Daily reported that Turkey had tightened security along its border with Syria on Saturday, deploying additional tanks, armored personnel vehicles and other weapons alongside its border with Syria.