"} 6c:{"position":18,"content":"

The Thai military said it had no information about the bodies.

"} 6d:{"position":19,"content":"

Activist Surachai Danwattananusorn, 78, who operated an online radio station critical of the junta and monarchy from Laos, disappeared in December. His whereabouts are not known.

"} 6e:{"position":20,"content":"

All three of the men who disappeared from Laos had been active in the United Front for Democracy against Dictatorship (UDD) protests in 2010, which ended in a military crackdown that killed more than 90 people.

"} 6f:{"position":21,"content":"

U.N. officials, in a March letter, noted that the junta issued arrest warrants for Surachai and Chatcharn a month after the army seized power in the 2014 coup.

"} 70:{"position":22,"content":"

"Given the active arrest warrants and their involvement with the UDD, it is believed Thai officials may be responsible for the killing of Mr Buppawan and Mr Luelert and the disappearance and possible killing of Mr Danwattananusorn," a group of top U.N. envoys said in the letter.

"} 71:{"position":23,"content":"

The latest disappearances from Vietnam have further rattled Thais in exile.

"} 72:{"position":24,"content":"

"We are worried about the situation," Piangdin said in his video.

"} 73:{"position":25,"content":"

"There have been disappearances and deaths of political activists who are against the military government and criticize the monarchy."

"} 74:{"position":26,"content":"Government officials in Vietnam could not be reached for comment."} 59:["$5a","$5b","$5c","$5d","$5e","$5f","$60","$61","$62","$63","$64","$65","$66","$67","$68","$69","$6a","$6b","$6c","$6d","$6e","$6f","$70","$71","$72","$73","$74"] 75:Tff0,

Three Thais accused of insulting king have disappeared - rights groups