The World Health Organisation (WHO) has accused Tanzania of failing to provide information about possible Ebola cases, thus stalling efforts to fight the outbreak.
In a statement, the UN health agency said the country refused to provide details about one suspected fatal case in Dar es Salaam and two others, despite repeated requests.
"The limited available official information from Tanzanian authorities represents a challenge," the agency highlighted.
Tanzania, however, said it has no suspected or confirmed cases.
Authorities in several parts of Africa are on high alert after the Democratic Republic of Congo recorded more than 2,000 deaths due to the ebola virus in one year.

At least 14 killed in explosion at weapons depot in Syria
US hits five Iranian oil tankers after attack on Navy ships
UK gives air traffic provider a week to probe outage that halted flights
Serbia's President Vucic dissolves parliament, calls snap elections
With large crowds attending, Norway lays King Harald to rest
Jordan intercepts 18 Iranian ballistic missiles
Air traffic control issue disrupts flights at major UK airports
At least 73 injured after Houthi rebels attack Saudi civilian and energy facilities
