Can anyone help me with this

I am tryin gto Load an image from a website into an image control on my spreadhseet

HTML Code:
Private Sub GetPicture()

row = ComboBox1.ListIndex
Dim url As String
url = Worksheets(2).Range("M" & row).Value

Worksheets(3).Image1.Picture = LoadPicture(url)

End Sub
This works if the image is on my hard drive but not with a web url

I get a access error