Two suspicious overnight fires in Antioch

September 28, 2011 9:54:32 AM PDT
Contra Costa fire officials are investigating two suspicious overnight fires in Antioch.

Investigators say both blazes are unusual because each started as grass fires outside of buildings, just a few minutes and a few blocks from one another.

One of the fires took place on Madrid Lane and Gentrytown Drive. No buildings were damaged, but two fences were destroyed.