A Qatar's royal family member in a video has accused the UAE government of detaining him after being "invited" as a guest of UAE crown prince Sheikh Mohammed bin Zayed al-Nahyan, reports said. UAE officials, however, denied the sheikh was detained. State news agency WAM reported that he was in the country "at his own behest". Saudi Arabia, the UAE, Bahrain and Egypt cut ties with Qatar last year and imposed economic blockade accusing it of financing extremists groups and supporting terrorism. Qatar's government and officials have been trying to broker peace while steadfastly denying the allegations of links to terror groups. Sheikh Abdullah bin Ali Al-Thani in a video said he was "afraid something could happen to me that will be blamed on Qatar". "I am now in Abu Dhabi, where I was a guest of (UAE crown prince) Sheikh Mohammed" bin Zayed al-Nahyan, said Sheikh Abdullah. "That is no longer the case. I am now detained." "I want to make clear that the people of Qatar are innocent," the sheikh said. "Sheikh Mohammed bears full responsibility for anything that happens to me," he added in the video. Qatar's foreign ministry spokeswoman said Doha was monitoring the situation. In August, Sheikh Abdullah had met Saudi Crown Prince Mohammed bin Salman to meditate on reopening the land border to allow Qatari pilgrims to perform the annual Muslim pilgrimage to Mecca. It was the first diplomatic meeting with since the row began with Qatar last year.