BEIJING/SANAA/MOSCOW - Twenty-five people have been killed by floods which hit northeastern China over the past week, state media said Saturday, as other parts of the country continued to experience a heatwave.

The biggest floods recorded in decades in China’s northeast region, which borders Russia, began last week, submerging buildings and forcing people from their homes, China’s official Xinhua news agency said.

Floods caused by heavy rain in the provinces of Heilongjiang, Liaoning and Jilin have led to the relocation of 140,000 people, and economic losses of $1.2b, Xinhua said. Pictures posted online showed brick farmhouses surrounded by water, and a small bridge which had been swept away by swollen river. Residents of Shenyang, in Liaoning province, were shown wading through waist-deep water to reach their cars, while one man negotiated the waters in a rubber dinghy.

In Yemen, Lightning and flash floods have killed 50 people in Yemen since Friday, including 27 who died when a torrent washed away a wedding convoy, local officials said Saturday.

Storms have battered the Arabian Peninsula country since Friday, triggering flash floods in several areas that killed 41 people, while nine others, including a soldier, were struck by lightning and died. The wedding convoy was travelling Friday through Wadi Nakhla, in the Taiz province, 260 kilometres (166 miles) south of Sanaa, when it was swept away by a torrent, a local official said on Saturday.

Meanwhile, As many as 100,000 people may be evacuated from their homes near Russia’s border with China if the region’s biggest floods for 120 years get worse, Russian media reported on Saturday. The floods, caused by a month of unusually heavy rain, are not expected to start receding until early September, the head of Russia’s hydrometeorology monitoring service told news agency Ria Novosti.

Television footage showed residents rowing boats past half-submerged houses and military vehicles dumping gravel to counter the floodwater, which has already led to the evacuation of about 170,000 people from the Amur, Khabarovsk and Jewish Autonomous regions.

“The damage is extensive, but the most significant achievement is there have been no casualties ... we cannot relax, there is still a lot of work to be done,” Russian President Vladimir Putin said in a televised address.

Water has swamped huge swathes of the countryside with 400,000 hectares of agricultural land submerged, causing potential damage of more than 2 billion roubles ($60 million), Putin’s envoy to the region Viktor Ishaev was quoted as saying.