Four Britons have been arrested in Kenya on suspicion of terror offences after taking photographs at an airport, according to reports.

The men were detained in Nairobi and taken for questioning after sparking a terror alert on 12 March, The Sun reported.

They are Eddie Swift and Paul Abbott, both 47, Steve Gibson, 60, and Ian Glover, 46, according to the newspaper.

The men were on a two-week plane spotting trip and had been posting pictures on Facebook, The Sun said.

Mr Swift's brother Peter told the newspaper they have done nothing wrong.

"It's blindingly obvious they weren't doing anyone any harm and weren't plotting anything," he said.

"None of them would harm a fly."

Their families are reportedly hoping they will be let off with a fine.

The Star, a Kenyan newspaper, said the men appeared in court on 14 March, when they did not enter a plea.

The prosecution was given two days to investigate the charges, according to its report, but there has been no update on the outcome of their enquiries from the newspaper.

The men are currently being held in a police station, according to The Sun.

A Foreign Office spokesman said: "We are in contact with Kenyan authorities following the arrest of four British nationals and are ready to provide consular assistance."