SOUTH NYACK, N.Y. (AP) A contract worker charged in connection with a blast that injured seven people at a suburban New York college pleaded not guilty to misdemeanor reckless endangerment and assault.

The Journal News ( reports that Douglas Walker of South Nyack was released without bail after Monday's arraignment. The newspaper says Walker's attorney declined to comment. Walker is due back in court in September.

A gap in an underground gas connection may have contributed to the June 5 explosion at Nyack College in South Nyack.

The blast shattered windows and caused a fire that was extinguished by an in-house sprinkler system. Orange & Rockland Utilities had to cut electricity to several hundred. Gas service also was disrupted to dozens of customers.

Police say Walker's actions were believed to be unintentional.


Information from: The Journal News,