According to sources familiar with the matter, former President Donald Trump’s lawyers have been notified that he is the target of a classified documents probe.

The probe, which is being led by the Department of Justice, is investigating whether Trump mishandled or disclosed sensitive information during his tenure in the White House.

The sources said that the probe is focusing on several incidents, including Trump’s conversations with foreign leaders, his involvement in the declassification of a controversial memo related to the Russia investigation, and his alleged disclosure of classified information to Russian officials in the Oval Office in 2017.

The sources added that the probe is in its early stages and that no formal charges have been filed against Trump. However, they said that the notification to Trump’s lawyers is a sign that the probe is serious and that Trump could face legal consequences if he is found to have violated the law.

Trump has not publicly commented on the probe, but he has repeatedly denied any wrongdoing and accused his political opponents of launching a witch hunt against him.