On April 9, 2016, Hapilon and Basilan-based commander Furuji Indama led 100 to 150 Abu Sayyaf fighters on an attack against government forces in Tipo-Tipo, Basilan. At least eighteen soldiers were killed and more than fifty other soldiers were wounded in the ten-hour shootout. Hapilon's son, Ubaida, was among the five Abu Sayyaf fighters killed in the encounter.