BBC Verify has previously established through satellite imagery, verified videos and expert analysis that the area near the school was hit by a series of strikes.
  
  Experts who have seen this latest video told us the presence of a Tomahawk missile, along with evidence the area was hit with multiple strikes, indicates this was a US operation. Neither Israel nor Iran are known to possess Tomahawks, experts said. 
  
  It would also make the scenario of a single Iranian missile hitting the site at the same time and causing such a high reported death toll highly improbable, an expert told BBC Verify.