Windows Phone users can once again upload pictures to Instagram from third party apps after access was blocked earlier this week, reports The Verge.

Facebook-owned Instagram is currently unavailable for Windows Phone, meaning owners of smartphones running the Microsoft OS must use other apps to customise their pictures before adding it to their Instagram page.

However, images uploaded to Instagram via third-party apps that don’t have access to the official API started to be either blocked or deleted from the site earlier this week.

Instagram made a statement on Tuesday saying that it had made changes to its spam filters to improve security, which had led to some services being blocked.

These filters have now been tweaked to allow third-party Windows Phone apps once again have the ability to upload images to Instagram’s website.

Nokia has requested Facebook to offer a Windows Phone version of the photo editing and sharing service.