Israeli elephant researcher Yeheskel Shoshani was among those killed in a possible terror attack on a minibus in downtown Addis Ababa on Tuesday, Israeli media reported.

The Israeli Foreign Ministry said it is unclear whether the explosion was terror-related and if Shoshani was aboard the minibus when it exploded.

Three people were killed and nine others were injured in the explosion, which occurred as the minibus was traveling on the road that runs between the Hilton Hotel and the Ethiopian Foreign Ministry, an Israeli website reported.

In a recent interview, Shoshani told of finding the corpse of a large elephant that had been shot by hunters. ” It was a large male, and the poachers wanted its ivory, so they sawed off its head,” he told Haaretz. “When I saw that, I thought about the last moments in the life of this elephant. Elephants have language – they talk to one another with sounds that we can’t hear. I asked myself what sound he made a moment before he died.”