Charles will be met by anti-monarchy protesters when he attends the Commonwealth service at Westminster Abbey tomorrow.

Campaign group Republic is organising a series of protests in the run up to the Coronation.

Protesters will be there early Monday afternoon, ready for the king's arrival.

Speaking for Republic, Graham Smith said today:

"We are continuing a series of protests against the monarchy in the lead up to the coronation. Charles's pointless parade will cost £50-100m and yet it is entirely unnecessary."

"In light of recent arrests, we're determined to get the message across that it's ok to protest against the royals."

"Increasingly people are either losing interest in the royals or turning against them. Instead of a pointless, expensive, coronation we need a serious public debate."

"We believe the British public should be asked, do you want Charles or a choice? The tide is starting to turn against the monarchy and we need a serious debate about its future."

"Recent polls have shown support among people under 45 has dropped below 50%. There is a clear need for a full, informed public debate."

"Republic will be protesting at the coronation, driving home the message that this is not a national celebration, but promotion of the monarchy at huge cost to the taxpayer."

"The time for change is here."

A Savanta poll showing fewer than 50% of under 45s support the monarchy is here: