(WPXI) – Crews worked Thursday to rescue two people after they became trapped in a chocolate tank at an M&M/Mars factory in central Pennsylvania, according to multiple reports. Officials confirmed a rescue mission began shortly before two-thirty. Lancaster County dispatchers told PennLive.com that two people fell into the tank at the facility just after 1:50 p.m. They were not hurt but could not get out on their own. First responders had to to cut a hole into the tank to free them. Dispatchers told PennLive.com that the tank had some chocolate in it at the time of the incident. The chocolate was believed to be about waist-high.