The Prison Service says there has also been a disturbance at Rye Hill Prison, near Rugby in Warwickshire, but it was unrelated to the Maidstone Prison incident.
"There was a passive demonstration at HMP Rye Hill where around 60 offenders refused to return to their cells," she said.
"This was peacefully resolved within a few hours."
More top news
Durrell Wildlife Conservation Trust in Jersey is urging people to stop using palm oil products to help save endangered orangutans.
AlphaBay, where illegal items including drugs were traded, is one of two dark web markets seized after an US and Europe-led operation.