Jake May, chief photojournalist at The Flint Journal, has been covering the water crisis in Flint, Mich., and the photos he posts on Instagram are gripping.

Flint’s tap water is poisoned. When Michigan officials switched water sources for the city in a cost-cutting move, lead entered the supply. That was in 2014, and the water source has since been moved back, but concerns remain as pipes and other infrastructure are now damaged. The incidence of lead poisoning, which is irreversible and untreatable, has nearly doubled among children under 5. Health officials are also investigating whether the water crisis is linked to two outbreaks of Legionnaires’ disease, which killed 10 people in the Flint area. A series of charts show just how toxic the city’s water is.

Meanwhile, the city is still billing people for tap water.

May has documented what’s happening in his community. His images are both heartbreaking and maddening. More of his work can be seen at MLive.com.

Protestors hold bottles of Flint water. People are asking for the resignation and arrest of Michigan Gov. Rick Snyder in relation to water crisis.

Flint children under 6 should have their blood tested for lead, a state health official has urged.

Flint residents can get free bottled water on Jan. 15 at the location below:

For more discussion on the Flint water crisis, check out the original Reddit thread.