MADRID (AP) — Police in Spain are investigating about 50 reported cases of women getting pricked with medical needles while at nightclubs or parties, a trend that previously came to the attention of authorities in other European countries.

So far, Spanish police have not confirmed any cases of sexual assault or robbery related to the mysterious jabs. Police said that 23 of the recently reported needle attacks were in northeast Spain's Catalonia region, which borders France.

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