Six more concrete blocks, some of which contained chemical drums, have been found buried at Bethpage Community Park, according to the state Department of Environmental Conservation.

The DEC says they were discovered last week and crews were back at the site Monday in full-body yellow suits drilling into the ground at the ballfield.

The DEC says Northrup Grumman's contractors uncovered the blocks after examining historical photos of the park. The DEC is overseeing the work and says there is no immediate threat to the public.

The DEC claims it can hardly believe that more chemicals were found – especially after ground penetrating radar was used by Grumman. The agency says it wants answers regarding how the newly found chemicals were missed.

According to the DEC, of the six concrete blocks dug up so far – three contained chemical drums inside.

The DEC will test the chemicals and figure out how to safely dispose of them.

The total number of drums excavated from the ballfield so far is 19.

News 12 reached out to Grumman for comment but has not yet heard back.

The DEC says the blocks will be investigated this week and that crews will continue digging in the area where they were found.