Actor Joseph Gatt, who has appeared in Game of Thrones as Thenn Warg, has been arrested for allegedly sending sexually explicit messages to a minor, NBC News reports.

According to a news release shared by the Los Angeles police on Tuesday, the 50-year-old actor was served a residential search warrant at his home by the Internet Crimes Against Children Task Force. Authorities said they received information that Gatt was engaged in “online sexually explicit communication with a minor across state lines.” He was arrested on an outstanding felony warrant. 

TMZ reports that Gatt was released on $5,000 bail the same day of his arrest. Police have encouraged any potential victims, or those with further information into the allegations, to come forward.

In a statement posted to Twitter, Gatt denied the allegations. “I obviously want to address the absolutely horrifying and completely untrue allegations recently leveled against me,” he wrote. “They are 100% categorically wrong and reckless. I have confirmed errors and misleading information in today’s press release. I am fully cooperating with police and LAPD to get to the bottom of this. I look forward to clearing my good name. Thank you to all of my friends and supporters who know that this is untrue and understand for legal reasons I cannot comment further on social media.” 

Other projects Gatt has appeared in include Star Trek Into DarknessThor, and the upcoming Dwayne ‘the Rock’ Johnson-starring DC film Black Adam