Ugandan security forces are on high alert after they said fighters from an Islamic State-linked group entered the country at the weekend.

The Allied Democratic Forces (ADF) militants are planning attacks in urban areas, places of worship, schools and public events, according to the army.

It urged the public to remain vigilant “to avoid being victims of ADF terror”.

The ADF has been linked to a series of deadly attacks in Uganda, including targeting a school last June.