The death toll from Turkey's flash floods along its northern Black Sea coast reached 27 on Friday, the disaster and emergency management authority said, rising by 10 overnight.

Thousands of stranded Indians were rescued Thursday from flooded villages along the Ganges after the river rose above its danger level in the country's most populous state.

The waterway surged to two meters (6.5 feet) above normal in the city of Allahabad, which has experienced its worst flooding in decades after days of torrential rain.

Italian firefighters said Thursday they had battled more than 500 blazes overnight as another death was reported, taking the total toll linked to wildfires to four over the past week.

An anticyclone dubbed Lucifer is sweeping across Italy, sending temperatures soaring and causing what is believed to be a new European record of 48.8 degrees Celsius (119.8 Fahrenheit) in Sicily on Wednesday.

Wildfires fanned by blistering temperatures and tinder-dry conditions have killed at least 42 people in Algeria, authorities said on Tuesday, adding that the fires had criminal origins.

Hundreds of firefighters were battling to control two massive wildfires in Greece on Wednesday, one raging for nine straight days, that have left hundreds homeless and caused incalculable damage.

From flash floods to forest fires, drought to "sea snot", Turkey is bearing the brunt of increasingly frequent disasters blamed on climate change, putting pressure on President Recep Tayyip Erdogan to act.

Wildfires that have killed eight people since late July across southern coastal regions, ravaging forests and turning villages to ash, followed the growth of a slimy mucus in the Sea of Marmara that destroyed marine life.

Wildfires fanned by blistering temperatures and tinder-dry conditions have killed at least seven people in Algeria, the interior minister said Tuesday, adding the fires had criminal origins.

Photographs posted on social media show huge walls of flame and billowing clouds of smoke towering over villages in the forested hills of the Kabylie region, east of the capital Algiers.

Backed by a huge multinational force, Greek firefighters on Tuesday struggled for an eighth day to control wildfires on the island of Evia that have caused massive damage, prompting an apology from the prime minister.

Nearly 900 firefighters, reinforced overnight with fresh arrivals from abroad, were deployed on the country's second largest island as major towns and resorts remained under threat.

Russian President Vladimir Putin ordered officials Tuesday to send in reinforcements to fight forest fires that continue to tear through Siberia. 

Wildfires have ripped through Siberia's forests with growing intensity in recent years, which Russian weather officials and environmentalists have linked to climate change and underfunded forestry management services. 

China insisted Tuesday it was implementing its climate commitments, while signaling no new policies following a U.N. report warning much more urgent action was needed to fight global warming.

Many world leaders responded to Monday's report, which said climate change was occurring faster than estimated, by calling for decisive and immediate moves to curtail fossil fuels.