An international aid organization has scaled down its operation in Dadaab refugee camps in northern Kenya following a raid on its camps in Ifo camp on Thursday night by heavily armed Somali gunmen.

Islamic Relief-Kenya reached the decision to scale down its humanitarian work on education in Ifo 1 camp for a week, awaiting an evaluation on the security of its both expatriates and local employees following the attack on an interagency security meeting on Saturday.

However, speaking to Xinhua on phone from Dadaab, UNHCR Head of Operations in Dadaab refugee camps Ahmed Warsame said the operations offered by the affected agency was not suspended, but 12 of the teaching staffs who had be traumatized by the gun raid were given a week break to spend with families out of the camps to recuperate from the traumatic experienced posed by the raid.

"As we are speaking now I'm going into the second meeting with affected agency officials and the refugees' leaders after the one we had on Saturday to deliberate on the emerging insecurity issues to our aid workers operating in the area," Warsameh said.

"The attacks will not affect the organization's work. But the absence of the 12 teachers is likely to create a gap in the school, " he added.

No one was hurt, neither property was stolen in the Thursday raid which also raised speculations that the attack could be a work of disorganized criminal gangs possible hired by people who unhappy with some activities offered by agency.

"The gap which will be created by the absences of the released teachers will be stepped in by assistant teachers on standby to avoid learning been disrupted," Warsameh said.

"We are happy that the Kenyan security officials have provided adequate security measure to forestall the harming of our workers in the five refugees camp in the area."

In January, Kenya Red Cross Society suspended its humanitarian activities in Ifo 1 camp following a similar attack that wounded a doctor working for the agency in its camps.

Many other such raids and kidnapping targeting expatriate staffs have before forced some aid organization pulling out of the camps.

Warsame said that it was too early to speculate motivates and identity of those behind the attack on the organization staff residential camp.

He however said that there were theories followed by intelligence officers over possible involvement in the incident by local criminals, who are not necessarily linked to the Islamist group.

"We don't know the motives of the assailants at the moment. Whether they are gangs within the gang refugee community unhappy with any activities offered by the organization or they are usual raids carried by the Somali Islamist group," Warsameh said.

"But since nobody claimed responsibilities so far, we just treat the incident as isolated insecurity issue."

"The organization which also offers health, water, hygiene and sanitation will continue to offer its humanitarian work as the Kenyan security agency, interagency security committee and the refugees leadership pursue mechanism to ensure the prevailing of adequate security to aid workers in the camps," Warsameh said.

Kenya has heightened security around the country with security agencies at an unprecedented state of alert after latest reports that Al-Shabaab plan more attacks against Kenya and foreign interests in the country.

Since Kenya sent troops across the border into Somalia in October 2011, northern and parts of eastern Kenya have been hit by a series of blasts, many targeting local security forces and humanitarian workers.

Several attacks believed to have been carried out by Al-Shabaab have occurred in Mandera, Wajir, and Garissa and Dadaab districts of northern Kenya even as the military reports gains against the Islamist group by capturing their military bases and killing scores of them.