ATHENS, Greece — A heat wave baking southeast Europe has fueled deadly wildfires in Turkey and threatened the national power grid in Greece as governments scrambled Monday to secure the resources needed to cope with the emergency.

Temperatures reached 45 C (113 F) in inland areas of Greece and nearby countries and are expected to remain high for most of the week.

Dann Mitchell, a professor of climate science at the University of Bristol, said the heat wave in southeast Europe “is not at all unexpected, and very likely enhanced due to human-induced climate change.”.

“The number of extreme heat events around the world is increasing year on year, with the top 10 hottest years on record all occurring since 2005,” Mitchell told The Associated Press.

“This year, we have seen a number of significant events, including a particularly dramatic heat wave in western Canada and the U.S., that was extreme even for current levels of climate change,” Mitchell said.

“These black swan events have always happened, but now they sit on the background of a hotter climate, so are even more deadly.”.

A small tornado in Istria, on Croatia’s northern Adriatic coast, toppled trees that destroyed several cars, hours before a large wildfire erupted outside the nearby resort of Trogir, threatening homes and the local power supply.

On a visit to the power grid operator Monday, Greek Prime Minister Kyriakos Mitsotakis urged members of the public to avoid daytime use of ovens, washing machines and other energy-demanding appliances to reduce the risk of blackouts

He described the weather conditions in Greece as the most severe since a deadly heat wave in 1987

“Many people here have compared the heat wave to what happened in 1987,” she said