Police have arrested and charged eight more people, aged 16 to 38, in an investigation into an ongoing gangland feud.
Since March there have been a series of assaults, shootings and firebombing incidents in Glasgow and Edinburgh.
A total of 20 people have now been arrested, and face charges including attempted murder, fire-raising, firearms offences and road traffic offences.
Police Scotland said the violence was linked to rival groups are targeting each other and it “would not be tolerated”.
On Wednesday, a 16-year-old boy and a 20-year-old man were arrested and charged over five attempted murders and fire-raising incident in Glasgow.
Then on Thursday, officers seized firearms during a search of two properties in South Queensferry.
Two men, aged 36 and 38, were arrested and charged in connection with firearms offences.
Police also made four other arrests earlier in the week.
Two men, aged 23 and 24, were held in the early hours of Saturday after a vehicle failed to stop for officers in the Robroyston area of Glasgow.
The car was abandoned on an offroad track near Chryston a short time later.
The men were charged with several offences related to organised crime.
On Wednesday, police arrested and charged a 38-year-old man in Edinburgh over the reset of a stolen vehicle and being in possession of weapons.
A 16-year-old boy was also arrested and charged over the reset of a stolen vehicle and culpable and reckless behaviour.
Police Scotland said it had a dedicated team gathering hundreds of pieces of evidence to build cases against those responsible for the attacks.
Det Ch Supt David Ferry said the arrests highlighted the work officers have been doing to catch those responsible.
He said: “As well as carrying out these days of action and disruption activities, there is a lot of work going on behind the scenes, including exploring forensic opportunities and analysis of digital devices.
“While this may not be as visible, please be assured we are working tirelessly to build cases and are following a number of significant lines of inquiry.”
He said there had been a “good response” to recent police appeals for information and thanked the public for their help.
Anyone with information is urged to contact Police Scotland..
How the gang feud developed
The unrest began on 2 March after a car was set on fire in Edinburgh’s Parrotshot area near The Jewel.
A beauty salon in Leith and a garage in Portobello were also targeted over a 10-day period.
Later, shots were reported as being fired at two properties in Niddrie and Pilton in separate incidents.
Further firebomb attacks were reported on another house in Niddrie at the start of April, just as the first property in Glasgow was targeted in the Robroyston area.
A carpet business in Bishopbriggs and another commercial premises in Kirkintilloch were also hit, alongside homes in Glasgow and Stepps.
Earlier this month, a 72-year-old woman and a 12-year-old boy were assaulted at a house in Egilsay Crescent in Milton, Glasgow.
And three people were charged in connection with drugs and firearms offences after a raid on a house in Edinburgh.
