Thailand’s King Maha Vajiralongkorn has fired two bedroom guards for adultery a week after stripping his royal consort of her titles for disloyalty.

In the latest purge of his royal household, the 67-year-old monarch said the two officers with the rank of lieutenant colonel were sacked for “extremely evil misconduct”.

“They have committed inappropriate acts and adultery,” according to an announcement in the Royal Gazette which described them as members of the “bedroom division”.

Two other officers with the rank of lieutenant were also dismissed for being “lax” in their duty as palace guards and “behaving unbecomingly”. All four were stripped of their ranks and titles.

The dismissals on Tuesday followed those of six palace officials last week, including a veterinarian, a police lieutenant general in the Royal Household Bureau and a nurse certified to serve as a royal page in the regent’s bedroom.

They appear to have been prompted by the dismissal of the king’s 34-year-old consort Sineenat Wongvajirapakdi for “disloyalty” just three months after she was appointed to the position.

Coronation of Thailand King Maha Vajiralongkorn: In pictures Show all 9 1 /9 Coronation of Thailand King Maha Vajiralongkorn: In pictures Coronation of Thailand King Maha Vajiralongkorn: In pictures Thai royal guards attend the coronation ceremony of Thai King Maha Vajiralongkorn Bodindradebayavarangkun outside the Grand Palace in Bangkok, Thailand EPA Coronation of Thailand King Maha Vajiralongkorn: In pictures Thai royal guards fire an artillery gun salute during the coronation ceremony of Thai King Maha Vajiralongkorn Bodindradebayavarangkun outside the Grand Palace in Bangkok, Thailand EPA Coronation of Thailand King Maha Vajiralongkorn: In pictures Thailand's King Maha Vajiralongkorn is crowned during his coronation in Bangkok in this still image taken from TV footage REUTERS Coronation of Thailand King Maha Vajiralongkorn: In pictures This handout from the Thai Royal Household Bureau taken and released on May 4, 2019 shows Thailand's King Maha Vajiralongkorn sitting beside Queen Suthida during his coronation in Bangkok AFP/Getty Images Coronation of Thailand King Maha Vajiralongkorn: In pictures In this image made from video, Thailand's King Maha Vajiralongkorn, left, sits on the throne in front of Queen Suthida as he is officially crowned king at the Grand Palace in Bangkok, Thailand AP Coronation of Thailand King Maha Vajiralongkorn: In pictures This screengrab from Thai TV Pool video taken on May 4, 2019 shows Chief Brahmin Phra Ratcha Khru Vamadeb Muni addressing Thailand's King Maha Vajiralongkorn during his coronation in Bangkok AFP/Getty Images Coronation of Thailand King Maha Vajiralongkorn: In pictures Thai royal guards attend the coronation ceremony of Thai King Maha Vajiralongkorn Bodindradebayavarangkun outside the Grand Palace in Bangkok, Thailand EPA Coronation of Thailand King Maha Vajiralongkorn: In pictures Thai people watch the coronation ceremony of Thai King Maha Vajiralongkorn Bodindradebayavarangkun on a large screen outside the Grand Palace in Bangkok, Thailand EPA Coronation of Thailand King Maha Vajiralongkorn: In pictures Volunteers watch the crowning of King Maha Vajiralongkorn during the Royal Coronation on May 4, 2019 in Bangkok, Thailand Getty Images

Ms Wongvajirapakdi, a trained nurse and pilot who served in the royal bodyguard, was accused of being “ungrateful” and attempting to rise to the level of the queen.

Experts suggested the king’s decision to take a consort for the first time since the 1920s – and then sacking her – was a demonstration of power.

“By appointing an official consort and acknowledging royal polygamy for the first time in a century, Vajiralongkorn was sending a political signal,” historian Andrew MacGregor Marshall told The Independent.

“He intends to reign as an absolute monarch like the Thai kings of the past. And by suddenly stripping his consort of her status just three months later, he is also signalling his power.

“He wants Thais to recognise that he has the power to elevate people and crush people based on his whims, and nobody can stand in his way.”

King Vajiralongkorn assumed the throne following the death of his father in 2016.