A 28-year-old man,suspected to be having links with extremists in Kerala and outside,was taken into custody just before his Kuwait-bound flight was to take off from the airport here on Sunday. Kabeer Koyambathudi,against whom a look-out notice was issued by Intelligence Bureau three months ago,had cleared emigration and boarded Thiruvananthapuram-Kuwait flight of Kuwait Airways,airport sources said. Emigration officials received information that Kabeer,hailing from Kerala's Wayanad district,was on the check out list and that he planned to leave the country today following which the aircraft was stopped minutes before it was readying for take off and he was taken into custody. Top police officials said the look-out notice was issued in connection with his suspected links with some extremist activities within and outside Kerala. The IB had alerted all airports to keep a watch on his movements. Kabeer is being questioned by the IB,which took him into custody,state police and CISF sources said.