Michigan Governor Rick Snyder is providing Flint with bottled water and other supplies amid the city's water crisis, Snyder's office said on Sunday. The governor faced mounting criticism after declaring a state of emergency four days ago, but did not follow up the announcement by sending supplies. Snyder's office said it had teamed up with local officials to begin providing free bottled water, filters and testing kits at five fire stations around the city. The statement urged residents to only use filter water for drinking supplies and food preparation. Flint's water crisis emerged two years ago, when the city decided to switch water sources from Lake Huron to the Flint River. However, the new supply corroded water pipes, prompting lead to filtrate the system. The city has since switched back, but lead levels in its water supplies remain high.