HOUSTON — Angels radio broadcaster Mark Langston was to remain overnight in a Houston hospital after suffering what the team called a “medical emergency” in the first inning of Friday night’s 6-4 loss to the Astros.

Langston had just completed announcing the lineups before the first pitch of Friday night’s game at Minute Maid Park when he reportedly collapsed, and medics were summoned into the booth. Jose Mota, who normally handles the pre- and post-game shows on television, filled in for the rest of the game with play-by-play announcer Terry Smith.

Langston was transported to a local hospital, where he was alert and undergoing testing to determine the cause of the episode, the team said. There was no further information on his condition, though Angels TV broadcaster Victor Rojas tweeted out postgame that Langston was “doing well.”

“Scary sight tonight watching things unfold in the booth two doors down from us,” Rojas tweeted. “Currently sitting with Langer in ER and he’s doing well, sharing some laughs about his pizza intake in NYC this week. Keep Mark in your prayers as they continue to run through protocols.”

“Sending love and prayers out to my longtime friend and someone whom I consider a brother, Mark Langston,” tweeted Angels TV color analyst Mark Gubicza, who was teammates with Langston in 1997.

Langston, 59, is finishing his seventh season as part of the Angels’ radio team. He pitched for 16 years in the majors (winning 179 games), including eight seasons with the Angels.

He pitched a combined no-hitter with Angels reliever Mike Witt on April 11, 1990, led the American League in strikeouts in three of his first four seasons (while with Seattle) and was a seven-time Gold Glove award winner.

He became head baseball coach at Orange Lutheran High after his retirement in 1999 and guided the Lancers to a playoff berth in 2002.