SINGAPORE (Reuters) - A British man faces up to a year in jail in Singapore for an email he is accused of sending to the government of the wealthy city-state in 2005, delivering a false warning of a terrorist attack.

Police on Thursday said they detained the man this year at Singapore’s airport, nearly 13 years after he allegedly sent an email to the communications ministry regarding the attack on a national day parade.

A source with knowledge of the matter said the man was British and his arrest marked the first time he had entered the country since sending the email.

“Investigations revealed that the suspect was believed to have sent the false information...to cause unnecessary alarm,” the police said in a statement.

The man will be charged on Friday with intentionally giving false information to a public servant, an offense punishable by up to a year in prison, a fine of up to S$5,000 ($3,600), or both.

The police did not identify the man and Reuters was not able to establish his identity. Reuters was not immediately able to contact the British High Commission in Singapore.

($1=1.3802 Singapore dollars)