Update: 2 p.m.
The U.S. representative shot while at baseball practice Wednesday morning is in critical condition.
Minnesota Republican Rep. Erik Paulsen is also on the baseball team, but was not at practice. He knows Scalise well however. The two live in a D.C. townhouse, and as Roll Call reported in 2011, Scalise and the other roommates persuaded Paulsen to join the team.
Paulsen this morning tweeted:
In a follow-up, Paulsen said he's glad the shooting wasn't worse, and is hoping for a speedy recovery for everyone.
Scalise was one of five people injured in the shooting.
One of the other victims, lobbyist Matt Mika, is also in critical condition, a Politico reporter tweeted. The others hurt were a congressional staffer and two Capitol Police officers, ABC News reports.
The suspected gunman, 66-year-old James Hodgkinson from Illinois, was killed by U.S. Capitol Police, ABC says. He was reportedly a volunteer for the Bernie Sanders campaign, and the Vermont senator put out a statement saying he's "sickened" by the attack. He also called any type of violence "unacceptable."
The shooting happened around 7 a.m. at a field in Alexandria, Virginia, less than 10 miles from the White House.
The New York Post has video from the scene. You can hear a number of shots fired over a period of about two minutes. The shooter is never shown in the video.
The original update from Wednesday morning, as well as the original story, are below.
Update: 9:45 a.m.
The Washington Post is reporting that the suspect arrested over the shooting at a GOP congressional baseball practice is a 66-year-old man from Illinois.
James T. Hodgkinson is alleged to have opened fire on practicing politicians, shooting House Majority Whip Steve Scalise in the hip. The gunman was shot by a Capitol Police officer who had himself been shot.
Reports coming in this morning are saying that a gunman has opened fire at members of Congress attending a baseball practice.
Fox News' Chad Pergram reports that House Majority Whip Rep. Steve Scalise (R-Louisiana) was among those shot, as were several staffers at a GOP baseball practice in Alexandria, Virginia, near Washington D.C.
Alabama Rep. Mo Brooks told reporter Matt Murphy that a gunman fired more than 50 shots and that five or more people were hit.
Alexandria police said in a statement that they believe they have a suspect in custody and victims are being taken to the hospital.
The Congressional baseball game roster includes two Minnesota politicians, Democratic Rep. Tim Walz and Republican Rep. Erik Paulsen. It's not clear at this stage if either were at the practice.
Minnesota Sen. Al Franken is among those who have commented on the shooting, saying: "Horrified by shooting in Alexandria. My thoughts are with Steve Scalise, my colleagues, staff members, and police who were attacked this AM."
Second Congressional District Rep. Jason Lewis had this to say.
NPR reports the annual baseball game, which is scheduled for Thursday night, sees Republicans play Democrats in support of a number of charities.
This is a developing story. We'll update this as more information becomes available.