Bethlehem - Ma'an - No strikes or injuries were reported after Gaza residents reported hearing what sounded like a dozen explosions across the Strip on Thursday, hours after the death of a Thai worker hit by projectile fire.

The Fatah-affiliated Al-Aqsa Martyrs Brigades claimed to have fired the projectile that killed the foreign worker, in a statement moments after reports from Ashkelon police said a man was injured while working in the greenhouses of the Terra Seva region of the southern Israeli town.

Gaza's director of ambulance and emergency services, Muawiya Hassanein, said no injuries or damages were reported in Gaza, and that officials believed the sounds were the results of sonic booms and not airstrikes.

An Israeli military spokeswoman confirmed the death of the unidentified man, and said the projectile strike was the third in 24 hours. No earlier injuries were reported from the two other projectiles.

UN Secretary-General Ban Ki-moon condemned the projectile attack, stressing that all acts of violence are "totally unacceptable."

"All such acts of terror and violence against civilians are totally unacceptable and contrary to international law," a representative said in statement issued in Moscow, where the secretary-general was scheduled to meet other members of the Quartet on Friday.