Lindsay Lohan and Samantha Ronson's latest fight became so violent police were called.
Three Los Angeles Police Department officers responded to calls about a domestic dispute at the couple's Beachwood Canyon home on March 14 morning.
But the 22-year-old actress and her 31-year-old DJ lover refused to let officers in, screaming at each other so furiously police reportedly called for backup.
Neighbours heard shouting and "things hitting the wall loudly". One object - believed to be a vase - even smashed a window.
A source said: "One of the windows on the side of the house was completely shattered, like someone had thrown something through it. You could see the shards of glass on the cement walk below."
The fight comes just a day after the Beverly Hills Police Department issued a warrant for Lindsay's arrest for violating her probation relating to a 2007 drink-driving conviction.
Sources claim the actress breached her driving restrictions - which allegedly state she is only allowed to get behind the wheel for work - when she drove herself to Las Vegas to attend one of Samantha's DJ sets.
The "Mean Girls" star claims the charges are "completely fabricated".
Her lawyer Shawn Chapman Holley will go to Beverly Hills Courthouse March 16 to respond to the arrest warrant, which she said was "born out of a misunderstanding".
Holley is confident she can "clear it all up".
Bail has been set at $50,000.
If Lindsay is found to have violated her probation, she could face up to a year in jail.
Hours after police left Lindsay's house on Saturday, three women arrived carrying blue Alcoholics Anonymous books.
The trio stayed for an hour and as they were leaving, one said Lindsay was "doing good".
Meanwhile, the actress' father Michael Lohan has blamed Samantha for Lindsay's legal woes.
He said: "I love Lindsay. I've been telling everyone this relationship with Sam is toxic. Hopefully this is a wake-up call for her because we all really want her to get her life better.
"I'm here for her 100 per cent. But nothing is going to get better with Sam Ronson in her life."
(China Daily/Agencies, March 17, 2009)
