6,000 (2011 SIL). Ethnic population: 6,300.
Morobe Province, Siassi district, Umboi and Rooke islands. 13 villages.
Vigorous. Retained despite pressure from Tok Pisin [tpi]. Use in first 3 years of primary education and geographic isolation on an island help language maintenance. All domains. All ages. Positive attitudes. Tok Pisin [tpi] used with outsiders (health personnel, government officials, including police) and also in church services alongside Kovai.
All but 2 villages situated in an ancient caldera on this volcanic island. Traditional religion, Christian.