A 31-year-old Dublin man has appeared in court charged with robbing a taxi at gunpoint in the north inner city on Sunday evening.

Gardaí have arrested two people, a man and a woman, after a pizza delivery man was hijacked in the early hours of this morning.

Vital clues on the latest gangland killing to hit Dublin could be held by members of the public who were socialising and shopping near the murder scene, gardaí indicated today.