(CNN) -- Two people were killed and two were in critical condition Tuesday after a shooting at a tire store in Simi Valley, California, northwest of Los Angeles, police said.
Police found the victims -- two of them dead -- after responding to reports of shots fired at the Tire Pros shop around 7:30 a.m., police said.
One of the dead was the gunman, police said.
No other information was immediately available. 
Watch police at the scene » E-mail to a friend 
All About Simi Valley
Read
VIDEO
From the Blogs: 
Sit tight, we're getting to the good stuff
