The annual Apprentice Boys' parade through the streets of Derry has passed off without incident.
Around 15,000 Apprentice Boys and their supporters took part in the parade to mark the raising of the siege of the city in 1689.
The PSNI said the march passed off peacefully but there were reports of minor disturbances during a feeder parade in Maghera.
Earlier a controversial Apprentice Boys feeder parade in north Belfast has passed off peacefully.
However, the governor of the loyal order in Derry, Mr William Allen, said he was disappointed that marchers had not been allowed to walk past the nationalist Ardoyne area, ahead of today's main demonstration in Derry.
The Apprentice Boys yesterday accepted a revised ruling from the Parades Commission allowing them to pass the Ardoyne by bus en-route to their main parade in Derry.
In an earlier determination the Commission had banned the loyalist organisation marching past the Ardoyne shops before travelling to the Siege of Derry commemoration.
But in an amended decision on Thursday night, it decided that travelling by bus past the restricted area would be beneficial to the management of the parade.
Around 350 PSNI officers had been drafted into the area to ensure the vehicle travels unhindered past protesters.
Last night the Apprentice Boys expressed anger at the Parades Commission decision but said they would agree to board the bus past the flashpoint area.
Spokesman Mr Tommy Cheevers accused the Commission of giving into threats from republicans.
He said: "We aren't happy that the Commission keeps giving into violence. As long as republicans keep getting away with it, it's going to escalate."
The annual march by Apprentice Boys has been peaceful in recent years but temperatures have been raised by the return leg of an Orange parade on July 12th when 25 police officers were injured in clashes with nationalists.
Senior police sources have appealed to Sinn Féin and nationalist residents groups to talk to them face to face to resolve any issues surrounding future parades.
"The people that need to be here are Sinn Féin. They really have to engage with us and sit down with us," said one source.
The PSNI believe that if the Ardoyne parade passes off smoothly, this will have a positive impact on the main parade.