Poland flatly rejected on Friday a suggestion by US President Donald Trump that drone incursions into its airspace could have been a mistake, describing them as "a deliberate Russian attack".

France and Germany said they were helping to strengthen NATO ally Poland’s air defense after at least 19 Russian drones entered Polish airspace on September 10, severely raising tensions between the Western military alliance and Moscow.

OTTAWA — Global Affairs Canada summoned Russian ambassador Oleg Stepanov over the incursion of Russian drones into Poland this week, as Ottawa looks to help a new effort by the NATO military alliance reinforce its eastern flank.

Poland triggered Article 4 after Moscow deliberately sent numerous drones into its airspace - find out what that means for the allies