Anyone in the vicinity of Naomi Campbell might want to take cover. The New York Post says the volatile supermodel's five-year romance with Russian billionaire Vladislav Doronin has hit the skids, and they're currently "taking a break."
"Naomi and Vlad have broken up, and he's been out partying in New York," tattles a source, who notes that he was recently seen flirting with a blonde at a hotel bar.
"Naomi and Vlad have a complex relationship, and sometimes break up and make up," explains another insider. "In many ways, their relationship is like a business arrangement. Naomi brings glamour to his hotels and properties, and he treats her extremely well. But they spend a lot of time apart due to work commitments."
Naomi, who has lately been crushing dreams on "The Face," revealed to Oprah in 2010 that she was living with the still-married real estate mogul in Moscow, where he has reportedly been building her a futuristic-looking house.
Campbell, 42, met Doronin, 50, at the Cannes Film Festival in 2008, a decade after he parted ways with his wife, Ekaterina, with whom he has a teenage daughter. He has yet to end the marriage legally.
Last November, Naomi tossed Vlad a ridiculously opulent birthday party at a 15th-century palace in Jodhpur, India. He's still expected to her attend her blowout birthday celebration later this month.
Click on for more photos of a jet-setting Naomi and Vlad …