Scorpions in Egypt have stung three people to death in the southern city of Aswan after heavy storms brought them into the streets and homes.
According to a health ministry official, scorpion stings injured 450 more people.
On Friday, there was a particularly violent hail and thunder storm near the Nile.
Heavy rain regularly washes scorpions into the streets, and snakes have also been disturbed.
Extra anti-venom doses have been distributed to medical centres in villages near mountains and deserts, according to a health official quoted by Al-Ahram news agency.
Doctors have been discouraged from administering vaccinations to treat scorpion stings, according to the official.
People have been advised to stay at home and avoid areas with a high concentration of trees.
Egypt is home to some of the world’s most lethal fat-tailed scorpions. Humans can be killed in less than an hour by the venom of a black fat-tail snake.
Breathing difficulties, muscle twitching, and unusual head movements are all symptoms of widespread venom effects.
Anti-venom is used as a preventative measure before symptoms appear, but it can also help when symptoms worsen.