With the Group of Seven leaders' summit in Mie Prefecture and a visit by U.S. President Barack Obama to Hiroshima later next week, security is set to tighten as record numbers of police deploy to streets, train stations, ports and airports throughout the country.

On Thursday, the National Police Agency announced it would send up to 23,000 police officers to the Ise-Shima area, including the island of Kashikojima, where the leaders of Japan, the United States, Britain, France, Germany, Italy, Canada and the European Union will gather on May 26-27.

The security presence at Chubu Centrair International Airport in Nagoya, the closest international airport to Kashikojima, is expected to be especially heavy. In addition, special units trained to repel drone attacks from land or sea will be employed in various locations, the agency said. The Japan Coast Guard will also tighten its patrols of the area.