Former LDS Missionary Josh Holt, imprisoned in a Venezuelan prison since 2016, took to social media Wednesday to beg for help as prisoners took over parts of his facility.
Loud voices outside Holt's cell can be heard in both videos.
Rep. Mia Love said Wednesday afternoon in a statement that her office had confirmed the prison "threatened by riots and violence", but that Holt was "safe at this time".
Venezuela's Information Ministry did not respond to a request for comment, but its chief prosecutor said in a tweet that his office was on site, without providing details.
Richard Blanco, a Venezuelan lawmaker, said on Twitter some were injured during what he said was a rare development at the prison.
The U.S. Embassy in Venezuela said on Twitter it was concerned, labeling the turmoil a riot. It said: "Venezuela's government is directly responsible for their safety and we will hold them responsible if anything happens to them".
"The life of Joshua Holt is in danger and we call again on the government to release him for humanitarian reasons", the embassy wrote in Spanish.
His first-ever video message from jail came amid what the US government described as a "riot" today by fellow inmates, including some of President Nicolas Maduro's top opponents being held alongside the American.
Trujillo declined to discuss how Holt was posting videos on his Facebook page, saying Holt's safety was in jeopardy and he didn't want to release any information that may harm him. They're saying they want to kill me. I am a political prisoner and they won't let me free.
In another video on social media, Joshua Holt, a USA citizen and Mormon missionary whose family has said he was framed on weapons charges while in Venezuela for his wedding, pleaded to be set free. His trial on weapons charges was scheduled to start Tuesday but Holt and his wife, Thamara Caleno, were never taken to the courthouse by their jailers at El Helicoide, headquarters to Venezuela's feared Sebin intelligence police. I have NEVER done anything wrong in my life.
Senator Orrin Hatch has been working with the Trump Administration to bring Holt and his wife home.
Love added that she is "extremely concerned" about Holt.
"It is time for the State Department to quickly produce a plan of action in order to resolve this situation once and for all". Josh and his family have suffered far too long.