BOSTON — U.S. Senators Elizabeth Warren and Ed Markey are joining a group of senators to urge more action by the federal government to prevent young people from vaping.

U.S. Sen. Richard Blumenthal (D – CT) says the senators asked the U.S. Department of Health and Human Services Friday to "take long-overdue steps" to advance policies to prevent more adolescents from becoming addicted to electronic cigarettes and help youth quit vaping.

The signatories, all Democrats, include Rhode Island Sen. Jack Reed, Massachusetts Sens. Elizabeth Warren and Edward Markey and Vermont Sen. Patrick Leahy.

The CDC said Thursday that 18 deaths linked to vaping have been confirmed in 15 states, and 80% of patients in lung injury cases associated with vaping products are younger than 35 years old.

The senators say there's a growing "e-cigarette epidemic."