Setsuo Tanaka, director general of the National Police Agency, on Monday instructed senior police nationwide tasked with counterterrorism to concentrate their efforts to prevent terrorist incidents.

National Police Agency chief Setsuo Tanaka addresses a meeting in Tokyo of senior police officers in charge of antiterrorism.

"As the military operation by nations such as the United States proceeds, the situation is getting more tense," Tanaka said at a meeting in Tokyo of senior counterterrorism officers.

It was the first meeting of all the NPA's top counterterrorism officials, the agency said.

Tanaka told the officers to do their best to gather information to anticipate terrorist movements.

"Terrorists will definitely make an attack by hitting weak points of the security system," Tanaka said. "Precise prior information is extremely important."

He asked the officers to establish a system with customs officials so they are notified when a suspicious individual enters Japan, as well as a similar network with the hotel industry and rental car companies in case terrorists infiltrate Japan.