Tinie Tempah has posted a handwritten note on Instagram to announce that he won't be performing at the Mobo Awards.

He doesn't give a specific reason but blames "music industry politics".

He says that it's not the first year it has been an issue and that it's beyond his and the award organisers' control.

The Mobos Twitter account shared his post with the caption "message from @TinieTempah regarding his performance tonight. We appreciate the kind words and we will always support".

Tinie has been nominated for two Mobo awards - best song and best male act - but he will not be there in person.

He says he wishes all the nominees good luck and says "I'll be watching and supporting".

Earlier Professor Green was announced as a late addition to the line-up.

It'll be the MC's third performance at the annual event after he claimed his first award in 2010 for best hip-hop act.

The 32-year-old said he was happy to be back in Glasgow for the awards and was looking forward to enjoying the city after the event.

Hosted by Melvin Odoom and his Kiss Breakfast Show co-host Rickie Haywood Williams, the ceremony is taking place in Glasgow's SSE Hydro in the event's fourth time in the city.

London, Liverpool and Leeds have previously hosted the event, which has been attended by more than 100,000 music fans since it was established by Kanya King in 1996.

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