Rep. Robert E. Andrews (D-N.J.), left, faces a formal ethics inquiry. (Melina Mara/The Washington Post)

The House Ethics Committee plans to launch separate formal investigations of Reps. Robert E. Andrews (D-N.J.) and Don Young (R-Alaska), continuing probes into long-simmering accusations against both lawmakers.

In separate statements, the panel said Tuesday that it is empaneling two investigative subcommittees to review the allegations.

Andrews has faced allegations that he violated House rules and federal law by using campaign funds to pay for personal trips to Scotland and Los Angeles and by using a graduation party for his daughter to raise campaign cash.