LAS VEGAS >> An open-air Las Vegas Strip pirate show that featured sirens in skimpy costumes dancing with shirtless sailors has been cancelled, with casino officials saying Monday they need to make way for a pharmacy and other shops.

“Sirens of TI” had been on a hiatus, but officials at the Treasure Island casino confirmed that the 10-year run of the seductive spectacle was over for good.

Andrea Mestdagh, a spokeswoman for Treasure Island public relations agency The Firm, didn’t have details about the number of cast members affected or how they were notified of the unexpected closure.

The free show, which featured elaborate pyrotechnics and dancers using the rigging of a giant ship as stripper poles, was a sexed-up version of a pirate show that had played to large crowds since 1993.

“Sirens” was created and directed by Kenny Ortega, who directed other well-known shows on the Strip, including the Bellagio water extravaganza and the “Siegfried and Roy” finale.

The “Sirens” production garnered lackluster ratings — it averaged two stars out of a possible five on nearly 150 reviews on the website Yelp.

The show entered what was supposed to be a two-month closure on Oct. 20. Construction crews drained the water from the man-made lagoon and sent in cranes to start working on a three-story, 48,000-square-foot retail space.

The plan later changed, according to Mestdagh, and the 10-minute shows that ran four times nightly were scrapped. Mention of the show has been stripped from the Treasure Island website.

The opening of the shops is planned for the fall of 2014.