Forty-three Al-Shabaab fighters were killed in the airstrike carried out on June 16 near Kismayo.
Latest reports have put the death toll from the terrorist group much higher than previously thought.
An unnamed military source said this while speaking to state media on Monday.
The source added that two Al-Shabaab militants from Kenya were among the casualties.
The two Kenyans have been identified as Idris Abdirahim Nur and Aden Abdirahman Aden.