Mumbai, Jul 25 (PTI) An unidentified person allegedly threatened Bollywood actor Katrina Kaif and her husband Vicky Kaushal on a social media platform, a police official said on Monday.<br> Kaushal complained to police that the person had threatened him and his wife on Instagram, the official said. <br> Based on the complaint, the Santacruz police here have registered an FIR against the unidentified person under Indian Penal Code Sections 506-II (criminal intimidation) and 354-D (stalking), the official said, adding that no arrest has been made so far.<br> "We have registered the FIR and are trying to get more details about the person," the official said. <br> The two actors got married in December 2021.<br> Kaif is known for her movies like "Tiger Zinda Hai", "Bharat" and "Zero".<br> Kaushal has received acclaim for his roles in films like "Masaan", "Sanju", "Raazi" and "Uri: The Surgical Strike". PTI ZA<br>GK GK