Indonesia's geophysics agency confirmed Friday's Sulawesi quake triggered a tsunami, AP and Reuters report.
A powerful quake sparked a violent tsunami caught on video in Indonesia on Friday - after a tsunami warning had already been lifted.
Breaking: Tsunami hits Palu, Indonesia after massive 7.7 natural disaster.
The ruin of a mosque badly damaged by natural disaster and tsunami is seen in Palu on Saturday.
Video footage that is believed to have been shot in Palu shows a massive moving wall of water hitting buildings and inundating streets. "We all ran out of buildings", said Yanti, a 40-year-old housewife in Donggala who goes by a single name.
He said families were reported missing and communications and power supplies were disrupted.
The quake briefly triggered a tsunami warning.
He said the fate of "tens to hundreds" of people involved in a beach festival in Palu when the tsunami struck was unknown.
BNPB spokesman Sutopo Purwo Nugroho shared a video on Twitter of the tsunami striking the coast at Palu.
Justin Reid "immensely proud" of brother signing with Panthers
The Carolina Panthers have signed free agent safety Eric Reid to a one-year contract, the team announced Thursday. Reid is expected to start right away after the Panthers placed Da'Norris Searcy on injured reserve last week.
The main airport in Palu was shut after the tsunami struck and was expected to stay closed for at least 24 hours, complicating any disaster relief efforts.
Some of the worst hit areas include the districts of South Banewa, Central Banewa, Sinhue and Soyol in Donggala Regency, "but we have not been able to access these areas" Sutopo said.
Patients are evacuated from a hospital following a strong quake in Poso, central Sulawesi, Indonesia.
An natural disaster measuring 7.7 on the Richter magnitude scale rocked Central Sulawesi shortly after a 6.0-magnitude quake killed one and injured at least 10 people in Donggala, Central Sulawesi, on Friday afternoon.
Earlier in July and August, at least 557 people lost their lives and more than 400,000 were dislocated after four earthquakes of magnitude ranging between 6.3 - 6.9 hit Indonesia's Lombok island.
Indonesian officials issued a tsunami warning Friday after a powerful natural disaster rocked the island of Sulawesi.
Other pictures showed major damage to buildings with rubble strewn about the road and large cracks running through pavement.
"All the things in my house were swaying", another Donggala resident, Mohammad Fikri, said of the earlier 6.1 quake.
Indonesia is on the so-called "Pacific Ring of Fire", an arc of fault lines circling the Pacific Basin which is prone to frequent and large earthquakes.