The process cannot access the file because it is being used by another process

Hi guys..
Below is my code to upload an image file.. resize and save it to another name.. and then delete an original image file.
Everything is fine but error returned when i trying to remove original image file. The process cannot access the file because it is being used by another process
Pls advise. TQ
If (Me.FileUpload.HasFile) = True Then 'start image resize and save Try Dim OriginalImage As System.Drawing.Image Dim ResizedImage As System.Drawing.Image Dim w, h As Integer If FileUpload.FileName <> "" Then FileUpload.PostedFile.SaveAs(path + filename_temp) 'Resiging Small Image OriginalImage = System.Drawing.Image.FromFile(path & filename_temp) w = OriginalImage.Width ...