Cyber-attacks

Supermarkets in countries including Ireland, Sweden and Belgium reported fridges being hiked in temperature on Monday.

Many Ukrainians, who have faced years of Russian attacks, did not take the messages seriously and doubted their veracity.

Dozens of shops across European countries have been hit by a cyber-attack affecting their fridges.

The temperature of freezers in several shops across Europe reportedly rose to as high as 50C.

Dozens of supermarkets in seven European countries dumped huge quantities of food after refrigerators and freezers were targeted in a cyber-attack.

Neither government has confirmed who was responsible for the cyberattacks on Sunday evening.

Both Ukraine and Russia say their air raid alert apps were cyber-attacked - Joe Tidy explains what we know so far.