The Somali pirates made perhaps their biggest score ever this week when they nabbed a Saudi oil tanker carrying 2 million barrels of oil. Turns out they should have asked their fellow countrymen first. CNN reports that Islamic fighters from the al-Shabab group have arrived in a coastal city and vowed to take the ship back from the pirates. It seems al-Shabab—which briefly ruled the country until being driven from power by Ethiopian forces—feels the pirates should not have hijacked a tanker from Saudi Arabia, a fellow Muslim country. Before we assume the nobility of the gesture, however, a local tells CNN that they might just want to split the ransom.