Russia’s state-owned fossil fuel giant Gazprom has warned customers in Europe it won’t guarantee gas supplies through the Nord Stream 1 pipeline. The Russia-to-Germany pipeline has been idled since July 11 for scheduled maintenance, and Gazprom says a technical issue involving a turbine will delay any restart for at least another five days. The announcement brought fresh concerns over Europe’s gas supplies heading into the winter.

On Monday, European Union officials signed a deal with Azerbaijan to double gas imports over the next five years. Meanwhile, French President Emmanuel Macron welcomed United Arab Emirates leader Sheikh Mohamed bin Zayed to Paris Monday, where the two signed a strategic deal to partner on energy projects.