The Secret Service has advised the Trump campaign to stop scheduling outdoor rallies in light of the recent assassination attempt against the former president, according to a new report.

Following the July 13 incident at Butler, Pennsylvania, Secret Service officials expressed concerns to President Trump’s campaign advisers about the safety of large outdoor events, the Washington Post reports. The officials emphasized the potential risks to the 78-year-old Republican nominee and recommended moving future rallies indoors.

In response, the Trump campaign is now scouting indoor venues for upcoming events and is not planning any large outdoor gatherings at present, the Post reports. The next two scheduled rallies are set to be held in multipurpose arenas at Charlotte, North Carolina, and a hockey arena at St. Cloud, Minnesota.

The former president’s first rally since the assassination attempt, which resulted in a bloody ear for Trump, one rally-goer dead, and two others critically injured, took place indoors at Grand Rapids, Michigan, on Saturday.

Since launching his 2024 White House bid, Trump has held numerous large outdoor rallies, with venues such as airports, fairgrounds, and parks being frequently used. The two rallies preceding the shooting incident were held outdoors at Chesapeake, Virginia, and at his golf course at Doral, Florida.

The outdoor events typically attract thousands of passionate supporters and feature several prominent speakers before Trump takes the stage. Earlier this summer, a rally at Wildwood, New Jersey, drew an estimated crowd of between 80,000 and 100,000 people — a record for a political rally in the state.