Flooding causing disruption on railway between Berwick and Newcastle

Flooding at Alnmouth. The tweet by Network Rail.Flooding at Alnmouth. The tweet by Network Rail.
Flooding at Alnmouth. The tweet by Network Rail.
Heavy rain has flooded the railway line between Berwick and Newcastle, with disruption expected until at least 1pm.

According to nationalrail.co.uk, trains are currently unable to run between Morpeth and Chathill. Network Rail is checking that the line is safe for trains to be able to run again.

The website states that road transport has been requested to run between Newcastle and Berwick, but there is no estimate on availability at present.