The government is considering obliging railway operators nationwide to install security cameras in newly built trains following a knife attack inside a Tokyo train in October, transport ministry officials said Friday.

Under safety measures compiled by the ministry, railway firms will also be called on to obtain passengers' understanding and cooperation over baggage inspections after a revised ordinance enabled operators to begin conducting security checks from July this year.

The move comes after the Ministry of Land, Infrastructure, Transport and Tourism exchanged views on security measures with major railway operators including the Japan Railways group.