Japan will impose a no-fly zone with a radius of 46 kilometers around the Windsor Hotel Toya, the venue in Hokkaido of the July 7-9 Group of Eight (G-8) summit, Japan's transport ministry said on June 10.

The no-fly zone, to be imposed for July 6-9, will be restricted basically to aircraft transporting summit participants and other officials as well as Japan's Self-Defense Forces and police helicopters involved in maintaining security, according to the Ministry of Land, Infrastructure, Transport and Tourism.

The Windsor Hotel Toya, which stands atop a 620-meter mountain, offers an unrestricted view of Lake Toya. The ministry said it had to figure out security measures to prevent a hijacked airplane from slamming into the hotel in a repeat of the Sep. 11, 2001, terrorist attacks in the United States.

The no-fly zone with a 46 km radius should provide sufficient time for the evacuation of people inside the hotel if a suspicious aircraft is spotted near the area, the ministry said.