BRUSSELS (Reuters) - A nationwide strike in protest against possible pension reforms crippled air and rail traffic in Belgium on Monday and many schools remained shut.

Almost half of all flights at Brussels airport were cancelled as luggage handlers, security and other ground staff went on strike, while national train operator NMBS said it was running only a limited number of trains throughout the country.

Public transport in the capital Brussels was also heavily impacted.

Schools were shut with tens of thousands of teachers expected to join a national rally in Brussels to protest pension reforms that are being discussed by parties trying to form a new government following the June 2024 election.

Government formation talks have dragged on for months without any real progress, as the five parties at the table continue to disagree on government finances and the contested pension reforms.

(Reporting by Bart Meijer, editing by Ed Osmond)