A German government spokesman said that Poland could send Leopard tanks to Ukraine without Berlin's authorisation, Sky News reports.
According to him, Warsaw has not yet made an official request.
Germany owns the export licence for the Leopard main battle tank, so it officially needs to authorise other countries sending it abroad.
The spokesman made the statement after Poland's prime minister said that his country could send its tanks regardless of Germany's permission.
Today, British Defence Secretary Ben Wallace said that one of the countries operating German-made Leopard tanks had already officially requested permission from Berlin to supply heavy armour to Ukraine.