Police have arrested a suspect in the recent killing of two American missionaries and a Ugandan student in East African's northwestern region.

The suspect Amin Aruma was detained on Saturday 20th March, about 10 miles from a Christian agricultural training center where Warren Pett, his wife, Donna, and the student were killed two nights earlier.

The Petts, dairy farmers from Mukwonago, Wis., were shot when seven armed men wearing military uniforms raided the college near Yumbe, 310 miles northwest of Kampala, where the couple taught.

There has been no clear motive for the slaying of the missionaries who were both 49. About 90 percent of the area population is Muslim, and some were upset by the setting up of Christian schools in the region, police said.

The Yumbe district is a remote area near Uganda's border with Sudan. About 10 percent of Uganda's 24 million population are Muslim.

Affiliated with 'Africa Inland Mission', the Petts had been in the African nation for more than a year and were teaching at the Esther Evangelical School of Technology, 15 miles east of Yumbe.

(ReligionToday/Charisma News Service)