Cabinet has dismissed renewed allegations of President Thabo Mbeki's involvement in arms deal corruption as baseless and mere speculation.

Wednesday's fortnightly Cabinet meeting had noted media reports regarding the investigation by German authorities into the allegations of corruption in the arms deal, government communications head Themba Maseko told a media briefing on Thursday.

"The government is particularly concerned about attempts to cast aspersions on the person and office of the Presidency.

"The allegations against the Presidency are accordingly dismissed as baseless, mere speculation and gross mischief as they bear no relation to the truth *1," Maseko said.

With acknowledgements to Sapa.