An international humanitarian group says an airstrike that hit a camp for internally displaced people in southern Somalia has killed three people and wounded more than 50 others.

Doctors Without Borders said late Sunday it was treating the wounded after jets bombed the camp in the town of Jilib.

The group called on all parties in the conflict in Somalia to respect the rights of civilians, and said most of those hurt in the attack were women and children.

Earlier reports said the bombings by suspected Kenyan fighter jets killed at least 10 people.

Local officials said the strike targeted an area where al-Shabab militants were distributing food to displaced persons.

Kenya sent an undisclosed number of troops across the border earlier this month to fight al-Shabab, which is blamed for a series of kidnapping of foreigners on Kenyan soil.

The kidnappings include three aid workers – an American woman, a Danish man and their Somali colleague – who were taken last week in the city of Galkayo.

The three work for the Danish Demining Group, whose parent organization said Sunday there has been contact with the kidnapped employees.

An official with the Danish Refugee Council said they are “doing well given the circumstances.”

The group said Sunday's contact was the first sign the employees were alive since they were kidnapped.