Pakistan on Sunday released 86 Indian fishermen held for trespassing into its territorial waters, officials said. 
"We released 86 more Indian fishermen," Superintendent of Karachi's Malir prison Raja Mumtaz said, adding that 363 still remain in Pakistani custody, according to (Pakistan Observer). 
On March 6, Pakistan had also released 86 fishermen and a civilian prisoner, he added. 
Indian and Pakistani fishermen are frequently detained for illegal fishing and many boats lack the technology to fix their precise location.

Source: QNA