Australian woman survives three terrorist attacks in three months

Julia Monaco tweeted lying flat on a shop floor as "utter chaos" unfolded during a suspected ISIS van attack on pedestrians in Las Ramblas, Barcelona on Thursday.

"In a split second it all kind of changed and everyone just started running and panicking and running for their lives and crying and screaming and we were forced back into the store, told to get away from the windows and to get low on the ground", she said.

She crouched behind part of a clothing display on the advice of her friend who had done terror incident training as a school teacher.

She told Australian radio station 3AW that she was "locked down on the Tube" on June 3 during a vehicular and knife attack at London Bridge, which left eight people dead.

An injured person is carried in Barcelona, Spain, Thursday, Aug. 17, 2017, after a white van jumped the sidewalk in the historic Las Ramblas district, crashing into a summer crowd of residents and tourists and injuring several people, police said.

Monaco added that she did not see the van, but saw people "who had clearly seen something awful happen", running and screaming.

'We were looking at about 200 people crowded out in the square. "We were genuinely terrified".

Ms Monaco described the latest terror event in Barcelona as "absolute pandemonium".

A heavily armed policeman guides survivors away from the scene.

An Australian woman who fled in fear from the Barcelona attack has told how she was caught up in two other recent terror incidents in Paris and London during her European travels.

Julia Monaco was in London during the deadly London Bridge attack and in Paris when an assailant claiming to be a "soldier" of Islamic State (IS, formerly ISIS/ISIL) attacked a police officer with a hammer.

The 26-year-old has been visiting different parts of Europe for the past three months.

"I feel like I want to stay here and not let "them" - whoever "they" may be - win and I'm gunna see what I came here to see", she added.

But Monaco said the incessant terrorism isn't going to stop her from exploring the world. They are still hunting for the driver of the van.