Facebook, Instagram, WhatsApp and Messenger apps are all currently down and not refreshing, users are reporting.

The sites, all owned by Facebook, went down at around 4.30pm this afternoon.

According to website DownDetector, over 600 reports have been detected in the 15 minutes to 4.45pm.

Users trying to access Facebook are greeted with an error message (below), with users of WhatsApp and Instagram able to view the apps, but new content is not appearing.

Bournemouth Echo: The Facebook error messageThe Facebook error message

More to follow.