A federal judge declared a mistrial in the Flint water crisis civil trial Thursday after jurors informed the court they could not reach a unanimous verdict after weeks of deliberations. 

Federal Magistrate Judge David Grand declared the mistrial after jurors presented a note saying “For the physical and emotional health of the jurors, we don’t believe we can continue with further deliberations … further deliberations will only result in stress and anxiety.” 

The lawsuit was brought by four plaintiffs who were children when the water crisis began in 2014. The plaintiffs claimed two engineering firms working in Flint at the time of the water crisis, Veolia Water North America Operating Services (VNA) and Lockwood, Andrews & Newnam Inc. (LAN) failed to take adequate steps to respond to the lead contamination that struck the city. 

Plaintiffs’ attorneys claimed the lead contamination in Flint’s drinking water resulted in developmental and social issues for the group and sought millions in damages. The firms’ defense teams argued the fault for any lead contamination lies with former state and Flint officials, including former Gov. Rick Snyder, who submitted a video testimony earlier in the trial.

“Responsibility for the Flint Water Crisis lies with these government officials who made the decision to switch Flint’s water source to save money at the expense of residents’ health and well-being, and who have so far escaped all accountability for their actions,” a VNA spokesperson said in a statement following the mistrial result. 

Grand began presiding over the case after District Judge Judith Levy stepped away from the case Tuesday. Levy stepped away because of a medical issue, per the U.S. District Court for the Eastern District of Michigan in Ann Arbor, where the trial was held. Proceedings were also broadcast over Zoom.

Ten jurors were originally present, but two dropped out during the course of the trial, which began in February. Deliberations began July 21.

New York-based attorney Moshe Maimon, representing plaintiffs, argued the court could individually interview jurors and accept a verdict of seven of the eight jurors, which Grand rejected. 

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Cheryl Bush, an attorney representing VNA, said individually interviewing jurors could coerce them into delivering a verdict that did not necessarily reflect their true opinions after weeks of deliberating.