The Labour peer at the centre of a row over donations to Sir Keir Starmer is under investigation by the Lords’ standards watchdog over an alleged failure to register interests.

Lord Waheed Alli is facing a probe over potential breaches of parliamentary rules surrounding openness and accountability in the members’ code of conduct.

It comes after a backlash over tens of thousands of pounds worth of gifts accepted by the Prime Minister from the peer, a major party donor.

According to an update published on Parliament’s website on Wednesday, Lord Alli is being investigated by the Lords’ commissioner for “alleged non-registration of interests leading to potential breaches of paragraphs 14(a) and 17 of the thirteenth edition of the code of conduct”.

These rules relate to making clear what the interests are that might be reasonably thought to influence a member’s parliamentary actions and ensuring entries are up to date.