Facebook has promised Irish politicians it is continuing to increase the size of its teams who check for offensive material uploaded to its site.
It follows a Channel 4 documentary, which showed secret footage of moderators being instructed not to remove abusive or graphic content.
Niamh Sweeney, Head of Public Policy at Facebook in Ireland, appeared before the Oireachtas Communications Committee this afternoon to answer questions about the film.
She explained that the company is investigating how some examples of content that staff were told not to take down ended up in presentations to staff.
Ms. Sweeney told politicians gathered that not all slides seen in the documentary had been approved for staff training by Facebook, and had been changed by the outside company brought in to train moderators.
In a statement, Facebook said action is being taken in three key areas in response to the issues highlighted in the programme.
The company is clamping down on restriction to access for under 13's, non-sexual child abuse and providing increased training and quality control for content moderators.
During today's meeting, Facebook was accused of betraying its own standards.
Facebook denies turning a blind eye to disturbing material, claiming it would damage its revenue through advertising.