Michelle Williams and Jason Segel have reportedly parted ways.

(PacificCoastNews.com)

The "Oz the Great and Powerful" actress and "The Muppets" star reached the end of the road with their romance earlier this month, People magazine reported.

The pair was photographed together in January on vacation in Cancun but insiders said the relationship couldn't survive the long distances involved. Williams, 32, lives with her daughter Matilda in New York, while Segel, 33, has filming commitments in Los Angeles, where he shoots "How I Met Your Mother."

Though the stars rarely acknowledged their relationship in public, a source told Us last summer they were "totally in love," and added, "Jason is obsessed with Michelle."

RELATED: Michelle Williams' Daughter Looks a Lot Like Heath Ledger