A group of four Democratic senators are taking aim at both NBC Universal and the Hollywood Foreign Press for the “notable displays of e-cigarette use” during Sunday’s broadcast of the Golden Globes.

In a letter sent Tuesday to both the CEO of NBC Universal and the president of the Hollywood Foreign Press Association, Sens. Dick Durbin (D-Ill.), Richard Blumenthal (D-Conn.), Sherrod Brown (D-Ohio), and Edward J. Markey (D-Mass.) expressed concern.

“We are troubled that these images glamorize smoking and serve as celebrity endorsements that could encourage young fans to begin smoking traditional cigarettes or e-cigarettes,” the senators wrote in the letter.