British citizens in Tanzania are being warned that they might be the targets of "an international terrorist group".
The UK Foreign Office issued the warning after receiving information that terrorists were planning an attack.
Tourists staying on the island of Zanzibar, off the East African coast, were especially warned to be careful in public places, according to the BBC.
The Foreign Office advice read, "We believe that Tanzania, including Zanzibar and Pemba Islands, is one of a number of countries in East Africa and the Horn of Africa where there may be an increased terrorist threat.
"We have received information that an international terrorist group may be planning an attack on the island of Zanzibar.
"British nationals in Tanzania, and especially in Zanzibar, should be vigilant, particularly in public places frequented by foreigners such as hotels, restaurants, shopping malls, markets, bars and nightclubs."
It should be noted that the Foreign Office guidance does not go so far as advising Britons to leave the country.
The UK warning follows a similar one from the United States last week warning its citizens to be on alert in public places such as markets, bars and nightclubs in Zanzibar. (Albawaba.com)