According to NATO Secretary-General, Jens Stoltenberg, Russia’s reason was not explanatory enough for the violation of Turkish airspace.
The Russian government had explained that the incident was due to bad weather, stating that its plane did not know when it entered into turkey, claiming it was an honest mistake.
Russia has been conducting airstrikes in Syria, claiming to be targeted at the Islamic State militants there.
Rights groups have denied this, noting that the strikes were targeted at the opposition rebel groups in Syria, thereby helping the government of President Bashar Al-Assad.
The US and other western countries are also suspecting that Russia is indeed helping the Syrian government and have called for an end to the airstrikes.