Rescue crews used boats and aircraft to search for a plane that disappeared off Venezuela carrying the boss of Italy's Missoni fashion house and five others.

But more than a day after the BN-2 Islander light aircraft disappeared from radar screens on its short flight from the Venezuelan resort islands of Los Roques to Caracas, no sign of the plane had been found, officials said.

"We have no other news" about the plane carrying 58-year-old Vittorio Missoni, chief executive of the company, his wife Maurizia Castiglioni, two of their Italian friends and two Venezuelan crew members, said Paolo Marchetti, a Missoni SpA official.

He spoke briefly to reporters as he left company headquarters in the northern Italian town of Sumirago yesterday.

Mr Missoni's younger brother Luca, who is active in the family-run business, was reportedly travelling to Venezuela yesterday to monitor search efforts.

"We're holding on to a glimmer of hope," said Oswaldo Scalvenzi , a relative of Elda Scalvenzi, one of the Missoni friends aboard the flight. "Until we can see the wreckage" hope will remain, he told Italian state TV.

Search teams were using a plane and a helicopter, working with the Venezuelan coastguard, Venezuela's National Civil Aviation Institute said.

The twin-engine plane had enough fuel on board for a three-hour flight, said Francisco Paz Fleitas, president of the civil aviation agency. He said the plane took off at 11.39am on Friday and had been expected to arrive at Caracas' Simon Bolivar International Airport 42 minutes later.

Authorities declared an alert after the plane did not make contact with the control tower at the Caracas airport or with the tower in Los Roques.

"The last position registered in radar data and those supplied by a system on board the aircraft" was about 11 miles south of Los Roques, the agency said.

Italian newspaper La Repubblica said Venezuelan aircraft, boats and helicopters took off at dawn yesterday to resume the search for the missing plane, which had been suspended on Friday night.

Venezuelan interior minister Nestor Reverol announced that the plane was missing hours after it took off from Los Roques, a string of islands popular for scuba diving, white beaches and coral reefs, and where the Missonis and their friends were on holiday.

Mr Reverol said on Friday that two navy patrol boats were involved in the search and a specialised oceanographic ship, the Guaicamacuto, had also been deployed.

Vittorio Missoni is the eldest son of the company's founder, Ottavio, who at 91, still follows the business.

The Corriere della Sera newspaper said Ottavio and his wife Rosita were at their home in Italy, along with their daughter Angela, waiting for information about the search.

Rosita Missoni designs housewares for the company and Angela is the company's creative director.

The Missoni fashion house, with its trademark zigzag and other geometric patterns in sweaters, scarves and other knitwear, is one of Italy's most famous fashion brands abroad. It is due to display its latest menswear creations at a fashion show in Milan later this month.

Vittorio Missoni played a key role in marketing the Missoni family creations in Asia, especially in Japan, Hong Kong and South Korea as general director of marketing for Missoni SpA.

He also spearheaded a push for the company's products in the United States and France. His efforts to expand the brand abroad led Mr Missoni to be dubbed the company's "ambassador".

He has been described as an active sportsman and lover of the outdoors. He and his wife and their friends from northern Italy were due to fly back from Caracas to Italy on Friday after spending the Christmas and New Year holidays in the islands.

The plane disappeared shortly after take-off on a flight of about 95 miles from the islands to the Caracas airport.

Other small planes have gone down or vanished on flights between the archipelago and the mainland.

On January 4 2008, a plane on a flight from Caracas to Los Roques disappeared after crashing with 14 people aboard, including eight Italians, a Swiss man and five Venezuelans.

The pilot had radioed to controllers that he was having engine trouble before the plane went down as it approached the islands. The body of the Venezuelan co-pilot later washed ashore, but no wreckage was found and most of those on board remain missing.

In 2009, a small plane returning from Los Roques with nine people aboard plunged into the Caribbean Sea, but all survived.