Prosecutors allege Paul Manafort of 'breaching' plea agreement by lying to FBI

Paul Manafort, US President Donald Trump's former campaign manager, has "breached" his plea agreement with the Justice Department by lying to the FBI and Special Counsel Robert Mueller's office two months after he started to cooperate in the Russia probe, prosecutors have alleged.

Manafort lied "on a variety of subject matters", violating his agreement, prosecutors said on Monday in a three-page filing signed by both the defence team and prosecution, reports CNN.

Both sides have asked to now move his case toward sentencing.

The Special Counsel's office has said that it would provide more details at a later date.

Manafort pleaded guilty to conspiracy and witness tampering on September 14.

The former Trump campaign chairman has met prosecutors at least nine times, amounting to hours of discussions about what he knows.

As part of his plea deal, Manafort admitted to committing a host of money laundering and foreign lobbying crimes and fraud, giving the federal prosecutors ample leverage over him.

He has been held in a Virginia jail since June.

(With inputs from agencies.)