The Transportation Security Administration (TSA) in the US is deploying enhanced explosives detection screening tools across airports to screen powdered substances carried by passengers.
Powder explosive detection kits will be installed at checkpoints.
The technology was piloted in 2008 by the TSA and acting TSA administrator Gale Rossides said enhancements have since strengthened its layered approach to security.
TSA officials, which operate in 450 airports in the US, will use X-ray technology to analyse substances that may require screening with a powder test kit.
The test kit will be used to sample powder before it gets to the secure baggage area section.