The Green Acres Mall in Valley Stream was evacuated Sunday as crews responded to a hazmat situation.

Fire officials say a mall maintenance worker was cleaning a sump pump in a garage tunnel when he dropped bleach and ammonia down a drain.

The chemicals created a strong odor, and the mall was evacuated as a precaution.

Hazmat crews flushed out the sump pump, officials say. The mall has since been reopened.

No injuries were reported.