Transcript for SPECIAL REPORT: Truck hits pedestrians on busy Barcelona street

This is an ABC news special room. Good afternoon I'm Tanya on this we are following breaking news at a Barcelona in Spain what may be a possible terror attack. This happened just moments ago. And what's being reported as a possible truck attack a truck winning over pedestrians in the middle of one aboard saloon is the busiest clauses. Our chief foreign correspondent Terry Moran has been monitoring all the news out of Europe added this area right now Terry what can you tell us. What time what we've got right now is reports from Barcelona that a large white van crashed into a crowd. Along Los Rahm blocks which is one of the most popular tourist Dicks districts in the heart of Barcelona as you say. And slammed into pedestrians. On that famous boulevard there are many injured according to police. And there are reports. That at least one of the people associated with this van has escaped on foot. There were also reports that two armed men have entered a restaurant nearby that is unconfirmed as of right now but this is that fluid situation. What is clearly. Now a signature. Kind of attack it looks like this was a deliberate act in the heart of Barcelona. In one of the most crowded tourist district to lost a lot of government workers around their restaurants artist of anybody's ever. And a Barcelona you walk down that boulevard. And as you can see it is a mess right now there are emergency workers on the scene. Reports coming out that many of those stores and restaurants and hotels are on lockdown people fled inside the doors have been locked. Police telling residents and others around Barcelona. Not to go to that neighborhood this is an ongoing scene once again a white van that is described out plowing. Into a crowd of pedestrians in the WASL rom plus district around blood the boulevard there. I ended near Catalonia square and it looks like this situation going to go on a little bit. 5:59 PM in Barcelona so plenty of people likely not plots at the time to Catalonia emergency services have shut down the subways we do you know they've been told the shelter in place. And are also telling anyone who was in that area. Tourists or people who live there to call their family members to let them know that they are okay we're going to be monitoring the situation throughout the afternoon oval couple full report later. On world news tonight with David nearer we thank you so much for tuning in we now return tore scheduled program. This has been a special. From ABC.

This transcript has been automatically generated and may not be 100% accurate.