Updated: 5:24 p.m.

House Majority Leader Steny Hoyer (D-Md.) gave a “voluntary” interview Wednesday to a House ethics subcommittee probing allegations related to ex-Rep. Eric Massa (D-N.Y.), according to a Democratic source.

The source, who asked not to be identified, said the office did not receive subpoenas.

The House Committee on Standards of Official Conduct, commonly called the ethics committee, voted Wednesday to establish the investigative subcommittee, acknowledging the possibility that Members or House aides may have failed to report the accusations.

“The allegations surrounding former Representative Massa are serious and warrant a full and complete investigation,” Chairwoman Zoe Lofgren (D-Calif.) and ranking member Jo Bonner (R-Ala.) said in a joint statement.

Lofgren and Bonner will chair the subcommittee. Reps. Ben Chandler (D-Ky.) and Mike Conaway (R-Texas) will also serve on the panel.

The House ethics committee had announced an inquiry focused on Massa’s office in March but had not established an investigative subcommittee.