A passenger plane of Japan's largest airline All Nippon Airways (ANA) returned to its departure airport on Saturday after a crack was found in the cockpit window, local media reported.

The ANA Flight 1182 was flying from Sapporo to Toyama, as at around 11:20 a.m. local time a crack was discovered in the cockpit window, Kyodo News reported.

The plane, a Boeing 737, returned and landed at Sapporo's New Chitose Airport at around 12:10 p.m. local time, it said.

According to the Japanese carrier, there were no injuries to the 65 passengers and crew members, and alternative flights were arranged.