ALAMEDA -- A weekend fire caused about $5,000 in damage to two homes and their contents after a blaze broke out early Sunday morning, fire officials said.

No one was injured in the blaze and the cause of the fire remained under investigation on Sunday evening.

Fire crews responded at 3:24 a.m. to a report of a fire that broke out outside a home on the 2800 block of Otis Drive, said fire spokesman James Colburn.

When firefighters arrived they found an outside fire in-between two houses, both of which were threatened by the flames.

Firefighters quickly extinguished the fire, Colburn said, and the damage was confined to a stack of household belongings which were being stored outside the homes.

Both homes sustained minor damage -- about $1,500 total to both homes.

Fire officials estimated the fire caused about $3,000 in damage to the contents that were being stored outside the residence.

The cause of the fire was not immediately known and the incident remained under investigation by Alameda Police.

Anyone with information about the fire is asked to call 510-337-8340.

Contact Natalie Neysa Alund at 510-293-2469. Follow her at Twitter.com/nataliealund.