Ogba language

Ogba (also Olu Ogba, mobu onu Ogbah) is an Igboid language spoken by Ogba people of Nigeria mostly in River State. They are part of the Ogba/ Egbema/Ndoni Local Government Area in Rivers State. The king is referred to as the 'Oba' just as the Benin's refer to theirs. Annually they celebrate the 'Egwu ogba' festival. The largest festival in the Egi land.

Writing system
Certain digraphs and trigraphs are also used.

The tones are indicated with diacritics:
 * the high tone is indicated by the absence of a diacritic:$\langlea, e, ẹ, i, ị, o, ọ, u, ụ\rangle$ ;
 * the low tone is indicated with the grave accent : $\langleà, è, ẹ̀, ì, ị̀, ò, ọ̀, ù, ụ̀\rangle$ ;
 * the falling tone is indicated with the circumflex accent : $\langleâ, ê, ệ, î, ị̂, ô, ộ, û, ụ̂\rangle$ ;
 * the downstep is indicated with the macron : $\langleā, ē, ẹ̄, ī, ị̄, ō, ọ̄, ū, ụ̄\rangle$.