August 19, 2018 7:25 am Whitman Chemical Explosion Investigated Officials say the explosion occurred as someone in the home was mixing pool chemicals. Fortunately, no one was hurt and residents returned a short time later after firefighters ventilated the structure. US & World Videos 2:08 FBI warns of increased terrorism threats at Pride events 2:14 Husband and wife killed in Worcester fire 20:35 Karen Read trial: What we learned from Tuesday's testimony 2:33 Jewish deli aims to be safe space for all 2:08 Here's how Leominster residents can seek out FEMA aid