The state's slow response to the crisis has generated wide criticism and some calls for Michigan Governor Rick Snyder's resignation.
A group of Flint families with children has filed new lawsuits in the Michigan city's water crisis, accusing private companies of professional negligence and government employees of misconduct that led to the contamination of the water supply.
The lawsuits filed on Thursday in Genesee County court, along with nine filed earlier in March, cover 50 children allegedly suffering from lead poisoning from drinking Flint water. The cases were all brought by Corey Stern, a New York attorney who specializes in child lead poisoning cases.
The lawsuits seek monetary damages from engineering firms Lockwood, Andrews & Newnam and Rowe Professional Services Co, two companies involved in carrying out the switch of the city's water supply from Lake Huron to the Flint River in April 2014.
The more corrosive river water caused lead to leach into the water from the pipes.