The health government is looking to prevent this week’s outbreak, which has left another 4 million people in Barcelona staying at home for 15 days.
Catalonia is the worst of Spain’s 150 epidemics and neighbouring France says the closure of borders will be discussed.
Spain recorded 260,000 and 28,400 deaths.
The most recent 24-hour figures from the Ministry of Health of the region recorded on Saturday 1,226 cases, adding 894 in the metropolitan area of Barcelona, which added to an increase in the following week.
The increase led to the announcement of new measures on Friday.
Although they did not amount to a full lockdown, they have caused considerable concern in a region that was hoping to see an easing of restrictions.
The measures, for an initial period of 15 days for Barcelona, La Noguera and El Segri, include:
Barcelona bar owner Maria Quintana told AFP: “We’d just started to see things coming back to life with the arrival of a few foreign tourists, so this is a step backwards.”
Spain only ended its tough national lockdown about four weeks ago and was hoping to kick-start the economy, particularly with tourism numbers.
The streets of Barcelona were reportedly more empty on Saturday, some citizens would possibly have defied orders and headed for cars to get home.
New Prime Minister Jean Castex was asked whether a closure of borders could be possible amid Spain’s report of 150 new virus clusters.
He said: “We are following this very closely, particularly here, because this is a genuine factor that we also want to talk about with the Spanish authorities.”
The border was not reopened to citizens until 21 June.
Deaths in France due to coronavirus have recently increased to just over 30,000.
On Saturday, discussions in Brussels about a massive post-coronavirus economic recovery plan continued.
The time of day of the discussions won mixed reviews. Italian Prime Minister Giuseppe Conte said there was a “deadlock,” but Austrian Chancellor Sebastian Kurz said he thought they were going in the right direction.
Some “frugale” countries in the north, such as the Netherlands and Sweden, have gone back to the 750 billion euro package ($857 billion; 680 billion pounds), arguing that they are loans, not subsidies.
A revised plan would be the subsidy point, however, there seems to be a long way to go.
Talks now enter on a third day on Sunday.