They warned that terrorist groups were expanding their reach across Africa despite the years of military pressure.
Nearly four million people remain displaced and extreme weather, insecurity and disease outbreaks are all increasing demand for lifesaving support.
Al-Shabaab claimed that it carried out suicide bomb attacks and killed 137 soldiers.
“We thwarted the terrorist plot by conducting a special operation against terrorists in this region,’’ Mr Gabow said.
The deaths of scores of protesters were reported and attributed to excessive use of force by security forces in Chad, DRC, Guinea, Kenya, Nigeria, etc.
Somali forces and allied militias have pushed al Shabaab fighters out of a strategic town in central Somalia that the Islamist group controlled for six years.
“There is still heavy gunfire inside the hotel, and we hear explosions from time to time.”
Mr Robow’s appointment was announced Tuesday, a move that could either help strengthen the fight against the Islamist sect or provoke further clan clashes.
Former Somali President Hassan Sheikh Mohamud was on Sunday re-elected as head of state of the East African country.
At least five others were injured during the mortar attack on the heavily fortified camp Halane.
