Three men have been arrested after a distraction grenade was thrown at an address in Salford in the early hours of last Friday.
The device was thrown at a house on Beech Lawn Close in Langworthy before the offender fled down an alleyway towards Eccles Old Road.
Bomb disposal officers were deployed and the exploded device was safely removed from the area.
A controlled explosion was later carried out.
About an hour later police received a report that shots had been fired on Quayview in Salford Quays.
Three men, aged 20, 22, and 26 have been arrested on suspicion of the possession of a firearm with intent to endanger life.
They have also been arrested on suspicion of causing damage to property with intent to endanger life.
They all remain in custody for questioning.
Detective Chief Inspector Amanda Delamore, of GMP’s Salford district, said: “While we have made arrests and are currently questioning three men, our investigation is still in the early stages and enquiries are very much ongoing.
“We continue to believe that these were targeted attacks and extra patrols remain in place in the surrounding areas. Please do approach them with any questions or concerns you may have.
“As our investigation continues, I would urge anyone with any information that could assist our investigation to please get in touch.”
Anyone with information should call police on 101 quoting incident number 110 of 18/05/2018, or the independent charity Crimestoppers, anonymously, 0800 555 111.