(CNN) A young mother who had to flee with her newborn child is one of thousands of survivors from Sunday's deadly earthquake on the Indonesian island of Lombok desperately waiting for aid to trickle through.

The death toll from the 6.9-magnitude quake has risen to 347, and is expected to be higher once all the bodies can be counted, according to the state-run Antara news agency.

Aid is beginning to reach the northern parts of the island, which were among the worst hit by the quake, but witnesses on the ground in Kayangan said hundreds of people -- many young children and elderly -- are still waiting for help to reach their area. They are currently sleeping outside, some subsisting on crackers and chili sauce as food supplies run out.

Sumiati, 27, was giving birth as the quake hit, and had to flee with her one day old baby to an evacuation spot.

"When the quake happened, I took my kid and ran," she said. "The electricity was off, but it went back on, I grabbed my kid then ran out to save us from the rubble."

Sumiati returned to her home to survey the damage and found the roof partially collapsed.

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