Thailand's military have said they will arrest any who uses a three-fingered salute borrowed from the Hunger Games as a form of protest against the recent coup.
The raised arm gesture has become a symbol of opposition to the military takeover on May 22 and a response to bans on political gatherings of more than five people.
Junta spokesman Colonel Weerachon Sukhondhapatipak said authorities were "monitoring the movement" and would take action if the salute is performed in large groups.
He said that if protesters ignore a warning to stop "we will have to make an arrest".
In the Hunger Games books and films, which star Jennifer Lawrence as Katniss Everdeen, the salute symbolises rebellion against totalitarian rule.
Critics of the coup, including the youngest daughter of ousted former premier Thaksin Shinawatra, have posted photographs of themselves flashing three fingers on Facebook and other social media sites.
"Dear #HungerGames. We've taken your sign as our own. Our struggle is non-fiction," wrote one Twitter user.
It is unlikely that people who post photos of the salute on the internet will be detained.
Despite the warning to protesters, the junta offered a reprieve to the country's vital tourism industry.
It lifted the curfew at three popular beach resorts - Phuket, Koh Samui and Pattaya - to ease the impact on tourists.
The Hunger Games films, which also star the late Philip Seymour Hoffman, have become worldwide box office hits.
Last week Taylor Swift apologises to fans after cancelling a Bangkok concert scheduled for June 9 due to events in the country.
Original headline: Hunger Games Salute Warning After Thai Coup
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