A U.S. official says the Army and local law enforcement are providing security for the Army officer who is testifying Tuesday during the House impeachment hearing.

The official says that the Army did a security assessment in order to make sure that Lt. Col. Alexander Vindman and his family are secure, so the officer didn’t have to worry about that as the proceedings go on.

MORE: A guide to the impeachment hearings

Vindman is testifying about his service as a National Security Council aide and his concerns surrounding President Donald Trump’s Ukraine pressure campaign.

The official said the Army is prepared to take additional steps if needed, which could include moving Vindman and his family to a more secure location on a base.

WATCH: @Yamiche reports that a high ranking official from the Army called the family of Lt. Col. Alexander Vindman to reassure them that Vindman will not face retaliation for speaking out against the president during his testimony in the Trump impeachment inquiry. #ImpeachmentPBS pic.twitter.com/0FepgwtOg5 — PBS NewsHour (@NewsHour) November 19, 2019

The official spoke on condition of anonymity to discuss internal security issues.