Lieutenant Governor Timothy P. Murray announced Thursday that former industrial sites in Hyde Park, ­Amesbury, Fitchburg, Ludlow, and New Bedford have been ­selected for clean-up assistance from the state’s brownfields support team.

Murray and Governor Deval Patrick launched the team in 2008 to aid in the cleanup of some of the state’s most complex former industrial sites and prepare them for redevelopment. The support team works with communities to identify ­issues that may obstruct redevelopment and provides assistance in coordinating with state and federal agencies critical to funding, permitting, and legal issues.