Sriwijaya Air Flight 182 lost contact with Indonesia’s aviation authorities after taking off from Jakarta, according to the country’s rescue agency.

FlightRadar24 data show the plane was a 26-year-old Boeing 737-500 series serving the Jakarta-Pontianak route. It isn’t immediately clear how many people were on board the passenger jet.
The aircraft was scheduled to take off from Jakarta at 1:40 p.m. local time, the FlightRadar24 website showed.
Sriwijaya Air representatives couldn’t immediately be reached for comment.

The aircraft’s last contact was at 2:40 p.m., and authorities have started search and rescue operations for the missing plane, according to Adita Irawati, a spokeswoman for the transport ministry.