The AFM this morning joined the search for missing Hungarian, Kormendi Janos, 26.
His disappearance was reported by the police yesterday.
An AFM Alouette helicopter this morning flew low during a search off the Dragonara coast in St Julians. A patrol boat was also involved.
A police spokesman said such searches were normal.
Mr Janos was last seen wearing black Bermudas, a beige top and sandals.
The police said that anyone having information about him should phone in confidence on telephone number 119.