LONDON - The British army has ordered Prince Harry, the third in line to the British throne, to attend a race awareness course after being caught on video calling a Pakistani fellow-cadet a ‘Paki.’

Furious army chiefs have told the 24-year-old British royal to attend an equality and diversity course, the Mirror reported Thursday.

It will be the second time Harry has had lessons on how not to be racist since joining the Army. But this one will be more intensive with senior officers hoping the tough sessions will drum it into Harry that his behaviour is unacceptable, the paper said.

Harry’s first equality course came when he joined the army - a routine initiation.

His latest blunder will also be written permanently into his army record but a senior military source said his military career ‘will not suffer.’

‘Although this matter will go on Harry’s record it will not go against him,’ the source said.

A spokesman for the royal family added: ‘Prince Harry has said sorry for his remarks and has been subjected to normal Army disciplinary procedures. The matter is now closed.’

The move came a day after black British comedian Stephen K. Amos said he was told by Harry during a meeting last year: ‘You don’t sound like a black chap.’

Harry sparked outrage four years ago when he was pictured turning up at a party dressed in a Nazi uniform.

Army chiefs took several weeks to review the 2006 home video that captured the prince calling Pakistani cadet Ahmed Raza Khan ‘our little Paki friend’.

His spokesman said: ‘Prince Harry fully understands how offensive this term can be, and is extremely sorry for any offence his words might cause. There is no question he was in any way seeking to insult his friend.’

Last month Harry telephoned Ahmed, now a Captain in the Pakistan army, shortly after the video came to light.

A Ministry of Defence spokesman said: ‘The Army has concluded its considerations in relation to this case.’