Speaker John Boehner John Andrew BoehnerLongtime House parliamentarian to step down Five things we learned from this year's primaries Bad blood between Pelosi, Meadows complicates coronavirus talks MORE (R-Ohio) has ordered flags at the U.S. Capitol to be flown at half-staff following last week's shooting in Chattanooga, Tenn., that left five service members dead.

The news came in a tweet from Boehner John Andrew BoehnerLongtime House parliamentarian to step down Five things we learned from this year's primaries Bad blood between Pelosi, Meadows complicates coronavirus talks MORE's account early Tuesday:

The flags @USCapitol stand at half-staff today in honor of the brave service members we lost in #Chattanooga. pic.twitter.com/N24p7aCIrc — Speaker John Boehner (@SpeakerBoehner) July 21, 2015

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Boehner said last week that he was “deeply saddened” by the “cowardly” shooting that left four Marines dead last Thursday. Another sailor died two days later of his wounds.

Kuwait-born Mohammad Youssuf Abdulazeez, 24, opened fire at a Navy recruiting center and later exchanged fire with law enforcement at a Navy and Marines reserve center, according to authorities. He died in the gunfight.

Officials are investigating the shooting as an act of domestic terrorism, and several lawmakers have pushed for a congressional investigation and for the Pentagon to change its firearms policy to allow service members to be armed at domestic military facilities.