JAKARTA, Oct 31 (Reuters) - Indonesian search and rescue workers believe they have found the fuselage of a Lion Air passenger jet that crashed with 189 people on board , and are also trying to confirm the origin of an underwater ping signal, officials said on Wednesday.

Ground staff lost touch with flight JT610 of Indonesian budget airline Lion Air 13 minutes after the Boeing 737 MAX 8 took off early on Monday from Jakarta, on its way to the tin-mining town of Pangkal Pinang.

There were no survivors.