MP Wille Rydman has announced that he plans to leave the National Coalition Party.
The MP made the announcement in a blog post on Monday, saying that, among other things, "it has become impossible to influence societal decisions from the NCP."
However, Rydman said he still plans to run in the upcoming parliamentary elections as a Helsinki candidate in April, but did not specify under which party.
Rydman resigned from the NCP's parliamentary group in June after the newspaper Helsingin Sanomat alleged the MP had harassed young women.
This prompted the National Bureau of Investigation to open a preliminary investigation into the allegation, which found that the suspected offence took place in 2015 and that the alleged victim was not underage at the time.
In December, Finland's National Prosecution Authority said the NBI's probe showed "that there are no probable grounds to support the suspect's guilt."
Rydman told Yle on Monday that he will soon announce which party he would be joining
In his blog post, the MP criticised the NCP for not being the "reliable" and "fact-based" party that he joined in 2002.
Rydman accused the NCP of being "image-driven," a quality that was reflected in the way the party treated him after the Helsingin Sanomat harassment story was published last summer.
"The NCP's leadership has been completely indifferent to the truth in this matter. 'If Rydman is a potential risk to its image, then Rydman has to go, no matter what the facts are,'" the MP wrote in the blog post.
Shortly after the article was published, Rydman announced his "indefinite" resignation from the NCP's parliamentary group.
In Monday's blog post, Rydman suggested that NCP leadership had delayed his return to the parliamentary group in order to prevent his nomination as a candidate in April's elections.
