CAIRO, May 21 (Reuters) - Egyptian investigators looking into the crash of an EgyptAir jet in the Mediterranean said on Saturday they were analysing data including signals sent from the aircraft, but it was too soon to reach any conclusions.

They said in a statement they were assessing material from air traffic control, aircraft and crew documents, and aircraft data management systems AIRMAN and ACARS, which download maintenance and fault data to an airline operator.

"It is far too early to make judgments or decisions on a single source of information such as the ACARS messages, which are signals or indicators that may have different causes (and) thus require further analysis," the statement said.

(Reporting by Dominic Evans; Editing by Kevin Liffey) ((Dominic.J.Evans@Thomsonreuters.com;))