'Russia's violation of Turkish airspace does not look like an accident'

NATO Secretary General, Jens Stoltenberg, said on Tuesday that Russian violation of Turkish airspace over the weekend does not look like an “accident".

“Russia has not offered any real explanation of its violation of Turkish airspace," Stoltenberg told reporters at a press conference in Brussel.

"This is not an accident this is a serious violation," he said, adding that the violation lasted for a long time.

"Nato was taking it very seriously," he said.

Russian news agency TASS, quoting sources from Russian embassy in Ankara, as saying that Moscow will be looking into claims of a second violation.

Stoltenberg said he has not had any direct contact with Moscow but NATO has still discussed the possibility of using its military lines of communication with Russia.

Turkey said that Russia had violated its airspace twice – the first violation occurred on Saturday and and the second took place on Sunday.

Russian incursion of Turkish air space has prompted Turkey to summon Moscow's ambassadors summon twice.