Intelligence officials worry a sabotage campaign blamed on Russia is growing more dangerous

It was almost midnight when a truck driver resting in his cab heard the crackling of flames at a warehouse in east London storing equipment for Ukraine. He grabbed a fire extinguisher and leapt out — but realized the blaze was too big and retreated.

About 30 minutes after the fire started, Dylan Earl, a British man who admitted to organizing the arson, received a message from a man U.K. authorities say was his Russian handler.

“Excellent,” it read in Russian.

The fire is one of more than 70 incidents linked to Russia that The Associated Press has documented since Moscow’s invasion of Ukraine in February 2022.

Read more: AP