Fear has struck residents of the Zanzibar Islands after rumours of the re-emergence of a sexually voracious ghost that attacks people while they sleep in their beds at night. Many Zanzibaris are now refusing to sleep in their houses as they believe it only preys on people in the comfort of their own beds. The ghost or genie goes by the name of Popo Bawa and people believe that it sodomises its victims, most of whom are men.

In recent years the residents on the semi-autonomous Tanzanian islands claimed that Popo Bawa only visited the islanders during voting, such as in the contentious general elections in 1995 and 2000. But to the surprise of many this current ghost has reappeared when there is no polling of any kind.

Popobawa, also Popo Bawa, is the name of an evil spirit, or shetani, which is believed by residents to have first appeared on the Tanzanian island of Pemba. In 1995, it was the focus of a major outbreak of mass hysteria or panic which spread from Pemba to Unguja, the main island of the Zanzibar archipelago, and across to Dar es Salaam and other urban centres on the East African coast.

http://theunexplainedmysteries.com/popobawa-demon.html