A convoy of police vans was seen leaving the port of Barcelona on Saturday after being stationed in the area over the last week ahead of a banned independence referendum.
Spain’s central government has declared the vote illegal and sent thousands of police reinforcements to prevent people from voting.
It has attempted to dismantle the infrastructure needed to conduct the referendum on independence.
Police monitored schools earmarked as polling stations and occupied the Catalan government’s communications hub on Saturday in an effort to stop the vote.
Hundreds of supporters of the referendum spent the night in schools with their children and say they plan to remain there until Sunday to keep them open for voters.