By Andrew Wasike.

NAIROBI, Kenya

Al-Shabaab militants from Somalia have killed nine Kenyan soldiers along the porous Kenyan-Somali border, officials revealed Monday.

The soldiers were on a patrol in Dobley, a Somali town, on their way back when their vehicle was blown up by an Improvised Explosive Device (IED) on Sunday .

Kenyan President Uhuru Kenyatta on Monday vowed that Kenya would continue its fight against the Somali-based al-Qaeda affiliated al-Shabaab militant group.

"Earlier today, I was appalled and saddened to learn that we had lost nine young patriots to a cowardly terrorist attack."

Two soldiers who were injured were taken to a local hospital before being flown to the Kenyan capital for specialized treatment.