MADRID, April 17 (Reuters) - Spanish supervisor CNMV on Wednesday suspended trade in Spanish energy provider Naturgy awaiting the disclosure of relevant information.

Spanish holding vehicle Criteria said on Tuesday it is in discussions with an investor group that has been talking to some of Naturgy's core shareholders over a possible partnership agreement.

Newspaper Cinco Dias on Tuesday cited unidentified market sources as saying that Abu Dhabi's TAQA was in discussion with Naturgy's three largest shareholders, including Criteria, over a possible takeover.

Before the suspension, Naturgy shares were up 1.3% at 21.8 euros ($23.16).

Naturgy declined to comment.

($1 = 0.9412 euros) (Reporting by Emma Pinedo and Pietro Lombardi; editing by Jesús Aguado)