Monmouth Assembly Member Nick Ramsay has been suspended from the Welsh Conservative party after being arrested.
The 44-year-old was arrested at his home on Wednesday night.
The party was informed on Thursday morning and Mr Ramsay was suspended from the Welsh assembly Conservative group.
A party spokesman confirmed there was a police incident at the Monmouth AM's home on Wednesday night.
A Welsh Conservative spokesman said: "Nick Ramsay has been suspended from the Welsh Conservative Group in the National Assembly for Wales following an incident which took place yesterday.
"The suspension will be reviewed following consideration of the matter by external agencies.
"We will not be making any further comments at this time."
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