HARTFORD, Conn. (AP) — Facebook offered assurances Monday that the social media site is removing some posts and so-called tribute pages related to the Sandy Hook Elementary School shooting over concerns they’re being used to exploit the tragedy.

Echoing complaints already brought by some Sandy Hook families and state officials, Connecticut’s two U.S. senators, Richard Blumenthal and Chris Murphy, and U.S. Rep. Elizabeth Esty requested the removal of offending pages in a letter to Facebook chief executive Mark Zuckerberg Monday morning.