Last week, a Chinese high-altitude balloon crossed over the United States, marking just one aspect of Beijing’s years-long global surveillance program, according to US officials.

They aim to bring attention to what they describe as an escalating and aggressive Chinese spying campaign that has been ongoing for several years, with four such balloons already flown over the US alone.

During a recent news conference, Secretary of State Antony Blinken revealed that the US has informed numerous nations about the full extent of the espionage.

Last week, a Chinese high-altitude balloon crossed over the United States, marking just one aspect of Beijing’s years-long global surveillance program, according to US officials. They aim to bring attention to what they describe as an escalating and aggressive Chinese spying campaign that has been ongoing for several years, with four such balloons already flown over the US alone. During a recent news conference, Secretary of State Antony Blinken revealed that the US has informed numerous nations about the full extent of the espionage.

China has rejected allegations of spying, maintaining that the aircraft had been a wayward weather balloon.

Asked about the balloon sightings, Stoltenberg said it “confirms a pattern of Chinese behavior, where we see that China over the last few years has invested heavily in new military capabilities, including different types of surveillance.” He said that included more spying in Europe.

The comments pointed to efforts by the US and its allies to flesh out details of the incident and assure other countries that the Biden administration’s tough stance — which has spurred new recriminations between the world’s two biggest economies — was warranted.

Blinken said the US has shared information about the balloon “with dozens of countries around the world,” communicating both from Washington and American embassies. That statement dovetailed with what two people familiar with the matter said was a broad outreach intended to affirm the Biden administration’s certainty about the balloon’s intelligence-gathering capabilities.

The secretary postponed a trip to Beijing set for this week, saying a visit now would send the wrong signal about China’s actions. At the same time, Blinken said the administration wanted to assure other nations that it would manage competition with China responsibly — a nod to anxiety that a prolonged diplomatic dispute could spill over and hurt them.

Earlier: Chinese Balloons Were Spotted Near US Bases During Trump’s Era

President Joe Biden downplayed fears that the episode had made relations with China any worse.

“No. No,” he told Judy Woodruff in an interview for PBS Newshour on Wednesday evening, when asked if ties between the world’s two largest economies had taken a “big hit.”

“Look, the idea shooting down a balloon that’s gathering information over America, and that makes relations worse? Look, I made it real clear to Xi Jinping that we’re going to compete fully with China but we’re not going looking for conflict. And that’s been the case so far,” Biden said.

The saga is also far from over, with US recovery efforts continuing off South Carolina. Tensions could rise again depending on the sophistication of surveillance equipment found by US Navy and Coast Guard personnel now combing through the debris. 

“We are getting more information, almost by the hour, as we continue to work to salvage the balloon — we’re learning from that and as well we’re learning from what we saw and picked up as the balloon traversed the United States,” Blinken added.

Asked if Chinese leader Xi Jinping was aware of the balloon’s launch and trajectory, Blinken said it didn’t matter. “As to who is responsible for that, China is, and it doesn’t matter on one level which individuals may or may not have been responsible.”

Read more: Chinese Balloons Were Spotted Near US Bases During Trump’s Era

The decision to let the balloon cross the US before it was shot down gave intelligence agencies a unique opportunity to understand the Chinese program and counter threats from similar surveillance activities in the future, Brigadier General Pat Ryder, a Pentagon spokesman, told reporters Wednesday. 

“We are confident that what we’ve learned about this program enables us to be able to monitor and be on the lookout” for these activities, Ryder said. He said the intelligence gathered “gets put into a broader library of information.”

Republican lawmakers have criticized the administration for not shooting down the balloon earlier, and officials have repeatedly sought to explain themselves amid the uproar.

The US saw the balloon before it entered US airspace but determined that it didn’t represent a physical threat. It passed over sensitive sites including nuclear-missile silos in Montana, but officials have said, without elaborating, that they were able to neutralize any intelligence risks it posed.

“It’s very difficult to determine why they did this” considering that China can gather more intelligence on the US from its satellites, Senate Armed Services Committee Chairman Jack Reed, a Rhode Island Democrat, told reporters on a call Tuesday.

According to Reed, the US is likely to benefit more from the intelligence operation than China, making it an uncomfortable situation for Beijing.