A furtive “monster” fish caught national attention in China this week as millions of people tuned in to a multiday effort to capture it.

The fish, estimated to be at least 27½ inches long, was first spotted in mid-July by a resident in Ruzhou, a landlocked central Chinese city.

Local authorities identified it as an alligator gar — a torpedo-shaped freshwater fish with razor-sharp teeth — and launched an operation to capture it.

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Officials fear the fish, whose origin is traced back some 100 million years by fossil records, would attack humans.

The “monster” busters faced a challenge: They had to first locate the fish in Yunchan Lake, a 30-acre artificial body of water rife with aquatic plants near the bottom

After two weeks searching in vain, the local government announced it would drain the entire lake.

Others brainstormed ideas for the search team, with one person proposing the use of Go-Pro-equipped remote-control cars and others suggesting luring it out with a laser pointer.

Government officials told local media that the gar could be hiding in an approximately 200-yard-long U-shaped pipeline leading to the lake.

The fish poses a threat to local ecosystems because of its voracious appetite, experts say. It also has few natural predators.