Jakarta police have found the body parts and debris from the coast of the Java Sea, where Indonesian plane Sriwijaya Air Boeing 737-500 had crashed on Saturday night. The plane with 62 people on board plunged into a steep dive just after four minutes of the take off from the Soekarno-Hatta international airport.

“As of this morning, we’ve received two (body) bags, one with passenger belongings and the other with body parts,” Jakarta police spokesman Yusri Yunus told Metro TV.

While reasons of the crash are yet to be disclosed, the authorities have started a frantic search and rescue operation to find any survivors. Divers, warships and helicopters were deployed on the crash site.

“We are aware of media reports from Jakarta regarding Sriwijaya Air flight SJ-182. Our thoughts are with the crew, passengers, and their families,” the US-based planemaker said in a statement.

“We are in contact with our airline customer and stand ready to support them during this difficult time.”

The authorities say all of the 62 passengers and crew, including 10 children, were Indonesians. The plane was scheduled for a 90 minutes journey from Jakarta to Pontianak city. However, it crashed in the Java Sea soon after taking off.

“I have four family members on the flight — my wife and three children,” Yaman Zai, the relative of a missing passenger, said.

“(My wife) sent me a picture of the baby today…How could my heart not be torn into pieces?”

The officials are using sonar radar to find out more signs of the crashed jet. At least three sites have been marked with orange balloons by the divers.

“From our observation, it is strongly believed the coordinates match the ones from the plane’s last signal contact,” Indonesia’s military head Hadi Tjahjanto said.