Russian air attacks killed 12 people and injured dozens more in Kyiv and the surrounding region early yesterday, authorities said, marking the sixth consecutive day of strikes on the Ukrainian capital.

Swarms of drones have plagued Kyiv and nearby areas in the last five days, killing residents, damaging homes and warehouses. Many of them are newer versions, powered by jet engines, making them harder to intercept. The near round-the-clock attacks have upended daily routines for millions with hours-long air-raid alerts.

More explosions were heard in the capital yesterday morning, a Reuters witness said.  Ukraine’s Foreign Minister Andrii Sybiha said Russian drones and ballistic missiles had targeted residential areas and railway infrastructure in the heavy overnight attacks.

Ukraine’s air force had been able to shoot down five ballistic missiles. Kyiv recently received a small batch of Patriot interceptors. The Russian strikes also targeted a border crossing with Nato-member Romania in the Black Sea region of Odesa.

Ukraine has also increased its attacks on Russia, targeting oil facilities and logistics infrastructure to undermine Moscow’s ability to wage war.

Local governors said air attacks caused a fire in the port area of Ust-Luga, a major export outlet in the northwest, and damaged civilian facilities in the Samara region, home to a number of major oil refineries some 800 km (500 miles) southeast of Moscow.

A civilian was also killed in an attack on Russia’s Belgorod region, which borders Ukraine, the acting governor said.