Two men associated with planting the explosives were captured and an investigation is on, they said.
The bombs were found in the city's Yerwa elementary school, provoking frenzy until army crushed the bombs from a separation.
The school was changed over into a camp for Internally Displaced Persons (IDP) after Boko Haram Islamists caught the town of Bama, in the range of 70 kilometers (43 miles) from Maiduguri, last July.
"Two extemporized bombs were found in Yerwa elementary school IDP camp by the individuals who informed warriors positioned adjacent," neighborhood vigilante Ari Butari said.
"The soldiers asked individuals to go out of the versinity before shooting the bombs from a separation, setting off two blasts that didn't hurt anybody," he said.
"Two men were captured on allegation that they were included in planting the bombs. They drew suspicion on the grounds that they were not known to be living in the camp," he included.
Butari blamed Boko Haram for being behind the thwarted bomb assault.
His record was upheld by Suleiman Yusuf, an IDP staying in the camp.
"Some individuals saw two surrendered dark polythene sacks and called the consideration of our pioneers in the camp who thusly educated security faculty," Yusuf said.
"The packs ended up being containing bombs and the fighters solicited everybody to stay clear from the bombs which they exploded from a separation," he said.
He affirmed that two men were confined in the wake of raising suspicions.
"Everybody is vigilant and once another face shows up we all stay on the ready," he said.
Scores of IDP camps speck Maiduguri taking after a colossal deluge of individuals escaping towns and towns seized by Boko Haram, multiplying the number of inhabitants in the city which remained at around one million individuals.
This is accepted to be the initially thwarted endeavor to assault any of the camps in the city.
The six-year-old Boko Haram revolt has slaughtered almost 13,000 individuals and dislodged 1.5 million in Nigeria and neighboring nations.
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