NYACK, N.Y. -

An explosion at a college campus building north of New York City has injured seven people, but authorities say none are life-threatening.
 
The explosion at Nyack College happened just before noon.
    
A Rockland County undersheriff says the injured include one student and six staff. Robert Van Cura says they were taken to hospitals.
    
The college sent out a tweet saying that "Everyone is doing ok."
    
Authorities say there's a gas leak at the building, but it's unclear if it caused the explosion or if the explosion caused the leak.
    
Nyack College is a Christian college about 25 miles north of New York City.