The defense secretary joined the secretary of state on Capitol Hill to deliver the first classified briefings to include all members of the House and Senate on the maritime attacks.

Also, a man was arrested on charges of planting pipe bombs before Jan. 6. Here’s the latest at the end of Thursday.

Two survivors of the attack were said to struggle to cling to the boat before a second strike. After the briefing with lawmakers, the military disclosed a boat strike on Thursday that killed four people.