NEW : One sailor is hospitalized , the Navy says . WHO : Two people have been treated and released . Information on what exploded was n't immediately available . A blast occurred as maintenance work is completed on a vessel at a weapons station , the Navy says . Damage is contained in boathouse area , the Navy says .
NEW : One sailor is hospitalized , the Navy says . WHO : Two people have been treated and released . A blast occurred as maintenance work is completed on a vessel at a weapons station , the Navy says . Damage is contained in boathouse area , the Navy says .