Barry Gardiner has been appointed as Labour’s new shadow energy secretary.

The announcement was made by Jeremy Corbyn yesterday evening after Lisa Nandy resigned from the post earlier in the day.

Gardiner was promoted from shadow energy minister, a post which he had held since September 2015. Elected as the MP for Brent North in 1997, Gardiner has also served as undersecretary and then shadow minister for environment, as well as on the energy and environment select committees.

Earlier today Alan Whitehead resigned as Labour’s shadow energy minister, saying Corbyn is “not the right person to lead the opposition”. No replacement has yet been named.

Yesterday Rachael Maskell was appointed as shadow environment secretary, after her predecessor, Kerry McCarthy, resigned at the weekend.

More than 40 members of shadow cabinet have now quit because of concerns over Corbyn’s leadership. Labour MPs are today voting on a motion of no confidence in the party leader.