Protesters at Astros-D-backs game

HOUSTON -- About 20 people have gathered outside Minute Maid Park before a game between the Arizona Diamondbacks and Houston Astros to protest Arizona's new immigration law.

The group chanted "Justice for all" and "Move the All-Star Game out of Arizona," referring to baseball's All-Star Game set to be held in Phoenix in 2011.

The Arizona law will require local and state law enforcement officers to question people about their immigration status if there's reason to suspect they're in the country illegally.

A group almost twice the size of the one in Houston protested outside of Wrigley Field when the Diamondbacks played the Cubs last week.