A spokesman for Uganda's Civil Aviation Authority said it had issued an alert on Wednesday, but did not give details.

US officials in Kampala have been warned of a specific terror threat to Entebbe Airport in Uganda later today.

Intelligence sources believe that there is a threat to the airport from an unknown terrorist group, according to Ugandan police.

The US Embassy in the Ugandan capital released a statement saying that the attack was planned for “today, 3 July, between the hours of 2100-2300.

“Individuals planning travel through the airport this evening may want to review their plans in light of this information,” the statement read.

“US Embassy Kampala wishes to remind US citizens of the continued threat of potential terrorist attacks in the country.

“The targets for these attacks could include hotels, restaurants, nightclubs, shopping malls, diplomatic missions, transportation hubs, religious institutions, government offices, or public transportation.”

The US Embassy’s terror warning is the fourth in the country since October last year with the Uganda National Museum believed to be a specific target in February and March earlier this year.

In May, the US Embassy warned of a potential terror attack in Kampala based on intelligence information about a group of attackers planning to strike targets around the Ugandan capital.

The airport was the scene of a hostage rescue mission in 1976 after an Air France aircraft carrying 248 passengers from Tel Aviv was hijacked by the Popular Front for the Liberation of Palestine and the German Revolutionary Cells.