How can I remove data from two different collections in ArangoDB via one query?

(Data in collection #1 has no link to data in collection #2)

Thank you

let collAItem = (
FOR item IN collA
  RETURN item   )


let collBItem = (
FOR item IN collB
  RETURN item   )
 

  REMOVE collAItem in collA 
  REMOVE collBItem in collB