AlHijjah 22, 1436, October 06, 2015, SPA -- NATO's secretary-general has rejected Moscow's claim that its military incursion into alliance airspace over Turkey wasn't intentional or important, saying there were two separate incidents and "the violation lasted for a long time," according to AP. Jens Stoltenberg, the NATO chief, told a news conference in Brussels on Tuesday the reported incidents were "very serious." Stoltenberg added, "It doesn't look like an accident, and we've seen two of them over the weekend."