A popular Facebook grief support page reclaimed control of its account Thursday after a hacking attack that page administrators say went unaddressed for seven weeks. The case is the latest knock on Facebook’s efforts to monitor content on its platform.

The moderators of the page, Grief the Unspoken, which has more than 500,000 followers, said earlier Thursday that an unidentified hacker first breached the account May 9.

The hacker posted a photo of a disfigured child, a video of a person being rescued from a burning vehicle, graphic images of medical conditions and other disturbing content, according to the page’s moderators, who removed most of the posts. On Monday, the moderators said, they lost control of the page altogether.

Grief the Unspoken, a page created in 2012 by Angie Cartwright, a self-help expert, was designed as a safe space for the bereaved to cope with the loss of a loved one or an illness.