Ireland plans to freeze the issuing of new exploration licenses for oil in Irish waters but not for gas, Prime Minister Leo Varadkar told journalists on Sept. 23 during a visit to New York, Irish media reported.

Varadkar said he would announce at a U.N. climate summit “that Ireland will also decline to issue any new exploration licenses for oil in Irish waters [though new licenses for gas will continue to be issued],” Virgin TV News reporter Gavan Reilly said in a Twitter post.

Reporters for the Irish Times and Examiner newspapers also reported the comments. A spokesman for Varadkar did not immediately respond to a request for comment.