A bomb fell from an Iraqi Sukhoi warplane and exploded in eastern Baghdad Monday because of a “technical problem,” killing at least seven people, security and medical officials said, Agence Prance-Presse reports.

“One of the bombs became stuck because of a technical problem, and during its (the aircraft’s) return to base it fell on three houses in Baghdad Jadida,” security spokesman Brigadier General Saad Maan said in a statement.

The jet was coming back from a bombing run when the accident occurred, Maan said.

Officials said that the blast, which occurred near the Rasheed air base, also wounded at least 11 people.