Sir Keir Starmer's position on oil and gas has caused a prominent Scottish Labour councillor to leave the party.
Sir Keir, the leader of Labour, promised earlier this week to stop new North Sea oil and gas exploration while assisting localities in making money off of clean energy initiatives.
The oil and gas industry was allegedly under "brutal attack," according to Barney Crockett, who led Aberdeen City Council from 2012 to 2014.
Mr. Crockett announced that he will now serve as an independent.
The Labour leader made the promise to "cut bills, create jobs, and provide energy security" on Monday while speaking in Edinburgh.
Environmentalists and the oil industry are both putting pressure on Sir Keir regarding the scope and speed of change.
Mr. Crockett expressed his disappointment with the party leadership for not consulting Aberdeen members about the policy in a statement to BBC Scotland on Wednesday.
He said, "I had to go, integrity demanded it.".
"I've been an intermittent member of the Labour Party for many years before becoming a councillor for them.
"I believe that when the announcement was made about the cessation of all new developments in the North Sea and the demand for a much higher level of tax, I was very perplexed and dismayed.
"There was also some pretty inflammatory language used about the companies. ".
Mr. Crockett declared he had no plans to step down as a councilor.
When asked if there were any circumstances that would lead him to consider rejoining the Labour Party, he responded, "Unfortunately, water has already crossed the bridge.
"While I recognize that it may be challenging, I would like to maintain positive relationships with everyone as much as possible. Even though I never say never, I don't believe things can be put back together easily. ".
"Keir Starmer, who I've always supported and held in high regard, made the most scathing attack on the industry I ever remember hearing," the speaker continued. ".
"I think more people in this area need to speak out. It's an emergency and a pivotal moment for our city. ".
In response to a request for comment, Scottish Labour stated that oil and gas would remain a key component of the UK's energy sector for many years to come and that the party's energy plans would establish Scotland as a global leader in clean energy.