Volkswagen's Audi is looking for an investor for its struggling Brussels plant, the premium brand's production director Gerd Walker said on Tuesday.

According to Audi Board Member for Production Gerd Walker, the Ingolstadt-based car manufacturer no longer sees any use for its factory in Brussels, which is threatened with closure, and is therefore now looking for an investor.

Initially launched in solidarity with employees at the Audi plant in Brussels, Monday's rally in the Belgian capital became the call for measures to preserve Europe's industrial sector.

More than 5,000 people marched through Brussels and most public transport in the Belgian capital was suspended on Monday in solidarity with workers of Audi Brussels whose jobs are threatened. Audi, a subsidiary of Volkswagen,

Audi is looking for an investor for its struggling Brussels plant, production director Gerd Walker told Reuters on Tuesday.

Outside an Audi factory in Brussels described by the German carmaker as the "cradle" of its electric drive, around 200 picketing workers huddled around a bonfire in the morning drizzle.

Thomas Bogus, who has been responsible for the electrification of a host of Audi sites, will now take on management of Audi's Brussels plant.

Audi workers in Brussels protest against potential layoffs at the Forest plant. The threat of job cuts has ignited widespread fear and uncertainty among the workforce.

The threat of closing a nearby Audi factory has led to a significant protest by European automotive industry workers. On 16th September, more than 5,000 individuals marched through the streets of Brussels.