A wind-whipped, two-alarm fire has engulfed a barn at the former site of the historic Meadowland Dairy in Portland.

The 50-by-25-foot building held tractors and other farm machinery but no animals. Portland Fire & Rescue spokesman Paul Corah says firefighters from Portland and Gresham were forced to pull back when the barn began to collapse shortly after 5 p.m. Tuesday.

Fire crews then focused successfully on saving two houses and a shed that shared the site, as well as residences in the Meadowcrest Farm Estates Mobile Home Park surrounding it.

No injuries were reported.

The cause of the fire is under investigation.

Copyright 2011 The Associated Press.