FBI Director Christopher Wray promised the bureau would do “everything they possibly can” to declassify information related to any connections between Saudi Arabia’s government and the 9/11 terrorist attacks.

The 20th anniversary of the al Qaeda terrorist attacks that killed nearly 3,000 people is approaching, and family members of the victims have spent years seeking information about the role that certain members of Saudi intelligence may have played in facilitating the operation, with the Justice Department citing state secrets privilege in the federal lawsuits. Wray was repeatedly pressed on the issue on Thursday during a House Judiciary Committee hearing, and the FBI chief said he would discuss further declassifications with Biden’s Director of National Intelligence Avril Haines.