There is a heavy police presence in Newcastle for a planned demonstration by the English Defence League over the death of a British soldier in Woolwich.
About 1,000 officers were expected to be on duty in the city centre, backed by 10 police horses on loan from the West Yorkshire force.
A statement on the Northumbria Police website said: "We appreciate that the events in London on Thursday may have heightened community concerns about this weekend's planned protests in Newcastle.
"We are constantly monitoring the situation and will continue to adapt accordingly."
More top news
After a most unusual trial in Brooklyn, jurors now must decide whether Abid Naseer plotted to blow up a Manchester shopping centre.
McLaren confirm that Fernando Alonso will not compete in the Australian GP on advice from doctors due to his recent crash
A "lethal mix" of poor clinical care and relationships between doctors and midwives led to the deaths of 11 babies and one mother.