Denver police discovered an urban version of cow tipping early Sunday after vandals turned over Smart Cars in five locations.

Police are looking for four men after “five or six” Smart Cars were tipped over, said police spokeswoman Mary McIver. The vandals struck at Ellsworth Avenue, and Pennsylvania Street, Ellsworth and Pearl Street, Alameda Avenue and Downing Street, Clarkson Street and Bayaud Avenue, and Alameda Avenue and Franklin Street.

“It sounds like somebody was driving around looking for them,” McIver said. “Somebody saw four males.” Police received a report of the incident at 12:20 a.m., McIver said.

Tom McGhee: 303-954-1671, tmcghee@denverpost.com or @dpmcghee