Germany has accused Russia of being responsible for the foiled drone attack targeting Leipzig airport last month and announced a slew of new measures against Moscow.

“We are not at war, but we are a daily target of hybrid attacks,” Germany’s interior minister Alexander Dobrindt told reporters.

Germany’s foreign minister Johann Wadephul also ordered the closure of the Russian consulate in Bonn, and the Russian House, a cultural center in Berlin. Entry controls for Russians entering Germany will also be strengthened.

The US previously assessed that an explosive-laden drone discovered at the airport in east Germany belonged to a Russian intelligence service, a US defense official in Europe told CNN.

The incident caused major disruptions and sparked security concerns across Europe. According to German authorities at the time, the drone was discovered inside a secure area of the Leipzig/Halle Airport on August 5 near the airport’s south runway, where cargo flights operate.

A bomb disposal robot was deployed and the detonator attached to the drone was removed. Images of the scene showed the robot close to a Ukrainian cargo plane. The US defense official told CNN the drone was carrying military-grade explosives.

The ‘hybrid war’ Europe faces is a gift for Putin. But there are risks too

The same day, a second flying object hit a cargo plane near the airport, causing minor damage. The aircraft later landed safely in Hannover.

Dobrindt said at the time that the incident represented a serious escalation. “Drone sightings, drone threats including in a hybrid context, are something we know from the past. That a drone armed with explosives is at an airport is a new threat scenario,” he said.

German media also recently reported that a third drone was found in a field near the airport about a week after incidents, prompting speculation that multiple drones were meant to be used in the attack. The German Federal Prosecutor’s Office, which is handling the case, declined to comment when contacted by CNN, citing an ongoing investigation.

Leipzig/Halle, one of the busiest cargo airports in Europe, has been the base for Ukraine’s Antonov Airlines cargo airline since Russia destroyed its home base in the town of Hostomel, northwest of Kyiv, in the early days of their full-scale invasion of Ukraine in 2022. The explosives-laden drone was found near one of the Ukrainian aircraft at the airport.

Western intelligence services have repeatedly pointed fingers at Russia over a series of seemingly unrelated security incidents across Europe. These have included arson, high-profile hacks, GPS jamming as well as sabotage actions against key infrastructure, including undersea communication cables, logistics centers and railways.

The US has warned that Russia might escalate further. Recent US intelligence assessments indicate Russian President Vladimir Putin could try to test NATO’s resolve by launching a limited attack on an allied country within the next few years, according to three sources familiar with those reports.

CNN contacted the Kremlin for comment on the US intel assessment on Putin as well as the assessment on the drone at Leipzig/Halle Airport.

CNN’s Sebastian Shukla, Fred Pleitgen, Haley Britzky, Zachary Cohen, Jennifer Hansler and Lauren Said-Moorhouse contributed to this report.