Floral tributes are left near the site where a Hawker Hunter fighter jet crashed onto the A27 road at Shoreham near Brighton, Britain August 23, 2015.[Photo/Agencies]

Amateur video footage of Saturday's crash showed two big explosions and black plumes of smoke after the jet hit the ground.

Police said the large number of attendees as well motorists and cyclists on the road made it difficult to confirm the identities of the victims.

Two footballers from nearby amateur team Worthing United were among those killed, the club said.

The road, a major artery for traffic along the south coast, remained closed on Monday. Barry said the wreckage of the aircraft was due to be moved later in the day.

The CAA said that, while Britain's safety standards were among the most stringent in the world, its review would look at whether improvements could be made. "We ... remain committed to continuously enhancing the safety of all civil aviation," a spokesman said.

Several crashes have occurred during other air displays in Britain in recent years, the latest three weeks ago when a stunt plane crashed at a car festival in Cheshire, northwest England, killing the pilot.