Police investigating several attacks on ATM's throughout Perth believe one of the bandits could have been injured in one of the the explosions.
Security vision of an attack on an ANZ machine in Success shows one of the bandits rolling away from the explosion, apparently on fire.
Another member of the gang casually walks past the man on the ground to check on the outcome of the blast.
Police said there were concerns for the welfare of the person they believe was injured as they had not presented themselves for medical treatment.
There have been six attacks on ATMs in the past two weeks.
TMs in three different suburbs were hit in the most recent attacks last weekend.
The first was at 1.44am on Monday at a National Australia Bank ATM explosion at the Cockburn Central shopping centre on Beeliar Drive in Success.
Then at 2.03am there was another blast at a Bankwest ATM at The Vale shopping centre on the corner of Amherst and Warton roads in Canning Vale.
The most severe blast was at 3.27am at a Westpac ATM at Westfield Whitford City shopping centre on Marmion Avenue. A big area at the western end of the centre's car park has been cordoned off.
Police are looking for information on a grey 2008 HSV GTS linked to the explosions.
