It is not clear if any of the five models who have died recently knew one another.
The first death was that of 35-year-old Shyla Stylez.
On January 9, 20-year-old Olivia Nova died in her bed in Las Vegas.
If this was mixed with recreational drugs or alcohol, it is believed this to be the cause of her passing,' he said.
Olivia Lua, 23, died in a rehab facility in West Hollywood on Friday morning.
She was slammed for the post.
It is not known how she got the substances into the facility where she was being treated for addiction.
It is not known if the overdose was accidental or intentional.