Police have apologised and launched an internal investigation following the use of alleged ‘offensive slur’ in a tweet posted from an official GMP account.

A tweet referencing the term ‘TERF’, which means 'trans-exclusionary radical feminist', was posted by the city centre team's account on Friday.

The posting is now being investigated by the force’s Professional Standards Branch.

Dozens of people responded when the message referencing the acronym was tweeted. It's a phrase that dates back several years, but has been used more widely online, during fierce debate over the Gender Recognition Act.

Last year, a consultation was held on reforming the Gender Recognition Act - the law that determines how trans people can have their identity legally recognised.

Some feminists have argued that relaxation of this legislation could be exploited in ways which harm women.

This has placed them at odds with some trans activists, who say these feminists are discriminating against them.

Some of these trans activists use the word 'TERF' to describe their feminist opponents in the debate.

The Twitter thread which triggered the police investigation was originally started by a force staff member in a bid to promote Hate Crime Awareness week.

It has since been deleted by GMP but the message was saved and shared by several Twitter users who have since shared it.

(Image: PA)

The message states: “Hello. The word TERF is not an offensive slur, It is a description. At GMP we stand against hate crime and the Trans community are victims of horrific attacks globally and in the UK. We would like to see you at the event and Hopefully you can gain insight into Trans Rights. Liam”

The comment sparked outrage amongst feminist activists who say ‘TERF’ is an offensive term.

Dr Nicola Williams tweeted: “Manchester police are now telling us that the word terf is not a term of abuse. Disgraceful example of bias and a total disregard of women's real experiences.”

While @Womans_Place_UK commented: “Good news. Someone at @GMPCityCentre realised telling women TERF is not a slur was a really bad look for a police force. The tweet has been deleted. We await the apology.”

GMP has since issued an apology via the City Centre Twitter account.

It reads: “Earlier today, Friday 1 February, comments were made via social media which were inappropriate and offensive.

“The posts have been deleted and the incident is being investigated by the Professional Standards Branch.

“We would like to apologise for any upset or offence."

The government is due to publish a report summarising the responses to the consultation to the Gender Recognition Act, its analysis of what they mean, and what action it intends to take.