Tanzanian police have arrested six people, including four Saudi Arabians, in the investigation of a church bombing in Arusha.
At least two people died and nearly 60 were wounded when a motorcyclist tossed a bomb into St. Joseph's Catholic Church Sunday.
The town is popular with tourists going on safari near Mount Kilimanjaro.
Militant Islamists have attacked at least 30 Tanzania churches in the past two years.
Terrorists also murdered a Pentecostal pastor and a Catholic priest last February.