Saija is spoken in Colombia with a main group of
speakers along the Saija river in the Choco department on
the Pacific coast. Stops /b,d/, the alveolar flap /r[/and
palatal glide /j/ have nasal consonant allophones before
nasalized vowels; stops, affricates and /s/ have
prenasalized allophones following a nasalized vowel.
Vowels occur both long and short and most sequences of
unlike vowels also occur.

Harms, P.L. 1984. Fonologia del Epena Pedee (Saija).
Sistemos Fonologicos de Idiomas Colombianos 5: 157-201.

Harms, P.L. 1985. Epena Pedee (Saija): Nasalization. From
Phonology to Discourse (Ruth M. Brend, ed.) (Language Data
-- Amerindian Series, no. 9.) Summer Institute in
Linguistics: 13-18.