US President Donald Trump has suggested that the Omani co-pilot accused of attacking Indian Captain Smit Machchhar on a Flydubai flight may have links to Iran, but investigators have yet to establish any Iranian involvement. Donald Trump says the Flydubai co-pilot may have links to Iran, but offers no evidence publicly.Captain Smit Machchhar was stabbed during the Dubai-Tel Aviv flight before passengers helped subdue the attacker.