At least two hurt in factory blast , hospital says . The explosion happened Monday afternoon at a ball bearing plant in southern New Hampshire . None of the injuries appeared to be life - threatening , a company spokeswoman said . ( CNN ) -- The plant produces metal parts for aircraft , medical equipment and high - tech industries .
At least two hurt in factory blast , hospital says . The explosion happened Monday afternoon at a ball bearing plant in southern New Hampshire . None of the injuries appeared to be life - threatening , a company spokeswoman said . The plant produces metal parts for aircraft , medical equipment and high - tech industries .