Suspected jihadists fired two rockets on the northeast Nigerian city of Maiduguri on Saturday, hitting two homes near the airport and an air force base, without causing casualties, residents said.

The Islamic State West Africa Province (ISWAP) and rival Boko Haram groups have previously launched deadly rocket attacks on the capital of Borno state, home to about three million people.

The rockets, fired from an unknown location at 0500 GMT, fell on houses in a residential area near the Gomari Airport neighborhood, which is close to a Nigerian Air Force base, two residents told AFP when reached by telephone.

“I was inside when I heard the first explosion and I instinctively looked out the door to see what was happening,” said resident Idris Muhammad.

“Shortly after a second rocket flew over my house before hitting the second house at Gomari,” he said.

“No one was hurt in both houses as the rockets fell on vacant parts of the houses.”

Kyari Ali, who lives in a street where the house was hit by the second rocket in the Gomari Airport neighbourhood, said it destroyed a section of the house.

“Luckily, there was no one in the affected part when the rocket landed,” said Ali who visited the house.

Security officials were yet to comment on the incident.

Residents said they suspected the attack was carried out by ISWAP which has consolidated its influence since the death in May of Boko Haram’s leader Abubakar Shekau.

The early morning attack happened a day after seven soldiers were killed by ISWAP jihadists near a base in Rann, close to the Cameroonian border.

In February, at least 17 people were killed and 43 others injured when ISWAP fighters fired multiple rockets on the city.

Jihadists have also blown up electricity towers on several occasions, plunging the city into darkness for months.

On February 23, 2019, a soldier was killed and 20 others wounded when Boko Haram launched 13 rocket attacks on Maiduguri hours before voting began in Nigeria’s presidential election.

Over 40,000 people have been killed since the insurgency began 12 years ago and more than two million are displaced from their homes.