UNION CITY -- One person died and another was injured in a house fire Tuesday afternoon, a spokeswoman for the Alameda County Fire Department said.

The fire was reported around 3 p.m. at a home in the 3300 block of San Carlos Way. The cause of the blaze was not yet known Tuesday but remains under investigation, said spokeswoman Aisha Knowles.

Knowles said details about the condition of the injured person were not available Tuesday afternoon. The name, age and gender of the person who died in the fire was not immediately available.

Dyer Street between Alvarado-Niles Road and Santa Susanna Way was closed briefly but has since reopened.

Check back for updates.

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