The new colonials maintained the German policies of ousting uncooperative rulers and of impressing workers for the plantations. Individuals could opt to pay a fine to avoid the labour, however, which led to a dearth of workers from the wealthier areas. The British thus renewed encouragement for people from the interior to move to the coast and work the plantations. Many Igbo from Nigeria entered the area, and the newcomers grew numerically and economically dominant over time. This led to ethnic tensions with the indigenes. Land expropriation was another problem, faced particularly in 1946.