Indonesia's disaster mitigation agency (BNPB) on Tuesday put the death toll at 105, including two on the western neighboring island of Bali, which also felt the quake, and said the figure was expected to rise.
"We lack the infrastructure to perform operations because (they) need to be performed in a sterile place", Wibowo told AFP.
In a statement issued by Ndivhuwo Mabaya, the Department of International Relations and Co-operation (Dirco) said "at this stage" it was aware of five South Africans that were present in the affected area during the quake. Thousands of homes and buildings were damaged and those displaced camped wherever they could - in sports fields and on roadsides, cobbling together ramshackle shelters and building campfires for warmth.
This version corrects the spelling of the spokesman's name.
Aid began reaching isolated areas of the Indonesian island struggling after a powerful quake that killed more than 130 people as rescuers intensified efforts Wednesday to find those buried in the rubble.
"We are staying in a much bigger hotel this time, we were in a small surfing hostel on the top floor", said Sarah.
The military has dispatched at least three transport planes carrying water, food, tents and medical supplies.
At a collapsed mosque in Bangsal district, emergency workers in orange uniforms removed a woman's body from the ruins on Wednesday morning.
The number of people killed in the aftermath of a powerful natural disaster in Indonesia has risen to 131.
A woman was pulled alive on Tuesday from under a collapsed grocery store in the rural north of Lombok, near the epicenter of Sunday's 6.9 magnitude quake.
The shallow 6.9-magnitude quake sparked terror among tourists and locals alike, coming just a week after another deadly tremor surged through Lombok and killed 17 people.
With not enough boats to evacuate tourists quickly and too few planes to fly them out of Lombok, many visitors were forced to wait for hours or camp on beaches and on the floor of the worldwide airport in Mataram. "We can not evacuate all of them all at once because we don't have enough capacity on the boats", Muhammad Faozal, head of West Nusa Tenggara's tourism agency, said.
"It went through my mind should we just crawl under something but I wasn't sure the building was going to hold up, and I thought, (let's) take a chance and leave", he said, adding that no one in the Singapore delegation was hurt.
Lombok International Airport reopened Monday, but national airline Garuda International announced some flights to the island could be delayed.
Indonesia is defined by string of volatile volcanoes stretching for thousands of miles, as it is situated on the so-called Ring of Fire around the Pacific.