Very recent reports from Nauru:

Wednesday 6 April 2016, at 8:42 pm:

Some Australian guards have beaten women and children in RPC3 and some have been taken to medical. This was only a few minutes ago.
Trying to get hold of [name] but her phone was stolen by locals who robbed her and her friend at the start of the week.

Wednesday 6 April 2016, at 9:31 pm:

All of our friends are cowering and furtively sending messages when they can.
… Something has to be done to de-escalate this.

The Guardian newspaper reported on the disturbances on 7 April

And here are some direct accounts of what is happening in Nauru refugee processing centre.

This was recorded in Nauru on the night of 6 April 2016. The screaming at the end was when the guards were trying to get into where the women were protecting the children.

Social media posts from Nauru:

Screenshot_2016-04-06-23-25-29 Screenshot_2016-04-06-21-28-03