Sudanese President Omar al-Bashir on Wednesday suspended negotiations with the United States on ending decades-old sanctions against Khartoum after Washington extended the embargo by three months, state media reported.

"President of the republic Omar al-Bashir issued a presidential decree ordering the suspension of the committee that was negotiating with the United States" over the lifting of sanctions, the official news agency SUNA reported quoting a presidential decree issued by Bashir.

The committee has been negotiating for more than a year with US officials for lifting the trade embargo imposed by Washington on Khartoum since 1997.