HONOLULU (KHON2) — On Thursday morning, the Maui Fire Department responded to a structure fire that occurred on Waimaluhia Lane.

At around 10:57 a.m. three fire engines and Hazmat 10 rushed to the scene, where they found a working fire on a ground-floor unit with flames that extended up and into a second-floor unit.

Check out more news from around Hawaii

MFD said they were able to knock down the working fires in both units quickly and confirmed all occupants were out.

By 11:37 a.m., the blaze was under control and then extinguished at 2:50 p.m.

A total of 18 people were displaced from four units — two of which sustained major fire damage, while two adjacent units sustained smoke damage. The extent of damage was approximately $400,000 to the structure, and $10,000 to contents.

MFD stated that 18 residents are being assisted by the American Red Cross.

Get Hawaii’s latest morning news delivered to your inbox, sign up for News 2 You

It is currently undetermined what caused the fire.