In 1849, at the Battle of Beting Maru, a convoy of Dayak boats that were returning from a sojourn at the River Rajan spotted Brooke's man of war, the "Nemesis". They then landed on the Beting Maru sandbar and retreated to their villages, with two Dayak boats acting as a diversion by sailing towards the "Nemesis" and engaging her, with the two boats managing to retreat safely after a few shots were exchanged. The next day, the Dayak ambushed Brooke's pursuing force, killing two of Brooke's Iban entourage before pulling back.