Fresh travel alerts have been issued for Egypt and Turkey after the latest terrorist atrocities over the weekend.

At least 25 people were killed and 49 injured when a bomb went off during a packed service at Cairo’s main Coptic cathedral.

Meanwhile, Kurdish militants claims responsibility for a double bombing in Istanbul.

A car bomb exploded next to a van holding police officers outside the Besiktas football stadium followed by a suicide bomber targeting the nearby Macka park district.

A total of 38 people were killed and 155 wounded in the twin attacks in the heart of the city.

They came two hours after the end of a match between top teams Bursaspor and Besiktas, when fans had already dispersed.

Turkey has declared a national day of mourning.

The Foreign and Commonwealth Office confirmed that there was an explosion in the vicinity of the Orthodox Cathedral in Abbaseya, Cairo.

“You should remain vigilant at all times and follow the advice of local security officials,” the FCO said in an updated travel advisory.

British travellers were also urged to avoid the Macka/Dolmabahce area of Istanbul following the car bomb.

“You should avoid the area, remain vigilant and follow the advice of the local security authorities,” the FCO said.