All contracts such as copper and aluminum suddenly suspended trading, London Metal Exchange said they are working to resolve the issue.

The London Metal Exchange has suspended trading on all contracts, and market participants for various metals from aluminum to zinc are unable to place orders. The cause of the malfunction is currently being investigated. "We are aware of the issue and are working to resolve it as soon as possible," a spokesperson for the exchange said in an email. Trading data shows that the halt took effect at 2:44 pm local time. Prior to the suspension, metal prices were fluctuating, with copper rising by 0.6% and aluminum falling by 1.3%.