(Photo by Chip Somodevilla/Getty Images)

WASHINGTON (AP) — Facebook has removed a campaign ad by President Donald Trump and Vice President Mike Pence that featured an upside-down red triangle, a symbol once used by Nazis to designate political prisoners, communists and others in concentration camps.

A Facebook executive who testified at a House Intelligence Committee hearing on Thursday said the company does not permit symbols of hateful ideology “unless they’re put up with context or condemnation.”

RELATED: Trump escalates war on Twitter, social media protections with executive order

In a statement, Trump campaign communications director Tim Murtaugh said the inverted red triangle was a symbol used by Antifa so it was included in an ad about Antifa.

“Whether aware of the history or meaning, for the Trump campaign to use a symbol — one which is practically identical to that used by the Nazi regime to classify political prisoners in concentration camps — to attack his opponents is offensive and deeply troubling,” ADL chief executive officer Jonathan Greenblatt said in a statement.

RELATED: From toast of town to toxic: Facebook CEO on the outs with Democrats

With Thursday’s hearing focused on the spread of disinformation tied to the 2020 election, the companies said they had not yet seen the same sort of concerted foreign influence campaigns like the one four years ago, when a Russian troll farm sowed discord online by playing up divisive social issues.