The group of 38 said they ran from their hiding place in a part of Marawi city controlled by self-styled Islamic State group gunmen as soldiers seized a key bridge in the area to give the civilians safe passage.
"We lay on the floor in the dark each night whenever we heard gunshots or explosions. We barricaded the doors with furniture and a refrigerator," high school teacher Jerona Sedrome, 27, told AFP.
Hundreds of gunmen rampaged through the city of 200,000, the Islamic capital of the mainly Catholic Philippines, on May 23 after government forces attempted to arrest their leader, Isnilon Hapilon.
Up to 50 gunmen continued to control downtown Marawi nearly two weeks later with at least 15 hostages including a Catholic priest, with some being used as human shields, the military said.
As many as 2,000 people also remained trapped in desperate conditions in these areas, the government said, likely without food and water and with some injured or ailing as security forces mount a relentless assault.
At least 70 people were rescued Saturday as intense fighting continued, including 23 teachers from Dansalan College, who were with a year-old baby, seven other children, and seven other adults.
The gunmen set alight the college on the first day of the fighting, and the teachers said bombs and fires also destroyed many of the houses around the house where they hid.
Dansalan college is run by the Jesuit order of the Catholic Church, and all the teachers were Christians.
"If it didn't rain we had no water and we didn't eat," said Sedrome's younger sister and fellow teacher, Jane Rose Sedrome, 25.
The elder sister said they secretly communicated with government rescuers by mobile phone text messages through their ordeal, and made their break for freedom when informed the gunmen had been driven away from the bridge.
But they had to go through the sniper alley of Bangolo, the city's old quarter which is one of the targets of the day and night air strikes.
"We knew they were ISIS because they wore black clothing and black head masks."
Arnold Balo, 28, an ice cream factory worker, said he cradled a boy in one hand and carried a half-metre long machete in the other, their only protection from the gunmen.
At one point during their sprint for freedom, a gunman perched near the top of a building aimed a sniper rifle at him and ordered him to put his weapon on the ground, Balo said.
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