29-year-old Knight had an argument through the social network last week with Lloyd’s husband, Wolverhampton Wanderers footballer Jamie O’Hara, with whom she has two children.
A spokesman for Staffordshire Police confirmed that they were looking into the matter after they received a report of malicious communications.
“We are aware of the incident and are dealing with it along with Thames Valley Police,” the Daily Mail quoted a spokesman as saying.
O’Hara, 25, was incensed after Knight tweeted to him: “You’re married correct !! But ur married to a raging s**t bag [sic]”
He followed up the comment with many other accusations relating to the 28-year-old model’s past, insinuating that she’d played the field with many other footballers in her time.
“If at @leonknight82 has got a problem he should give me a call instead of giving the bigun on twitter to a women with two kids,” he wrote.
“To all people asking me about Leon knight this is now in the hands of the police and my lawyers, jealousy is the route to all evil,” he tweeted.
Clearly upset, Lloyd later took to her own page and wrote: “Sadly I might be coming off twitter as I can’t take much more abuse from scum when all am trying to do is be a good mum and wife I love all[sic].”
However, she later changed her mind about shutting down her Twitter account.