On Friday “we dispatched a new package of 14 generators in view of what is proving to be a very harsh and difficult winter in Ukraine”, Foreign Minister José Manuel Albares said.

Kyiv on Friday appealed to European allies for support, saying nearly half of Ukraine’s energy infrastructure had been disabled and needed repair.

Madrid last month said it had sent five generators.

Temperatures have plunged across Ukraine in recent days, with the first snow falling on Thursday.

“Due to a dramatic drop in temperature, electricity consumption is increasing daily in those regions of Ukraine where power supply has already been restored after massive missile strikes on November 15th on the energy infrastructure,” said Ukrenergo, an electricity transmission system operator in Ukraine and the sole operator of the country’s high-voltage transmission lines.

Albares said Spain would also dispatch 30 ambulances as well as police reinforcements to help Ukraine investigate possible war crimes on its territory.

Both the European Commission and the European Parliament have warned that the humanitarian situation in Ukraine is the “worst” since the war broke out in February and insisted on the need to provide aid to the country so that it can face the winter.