Very far from confirmed. I just finished reading [0,1] accounts of
atmospheric heat anomalies being touted as a cause - alongside
speculation about cyber-attacks. Something to remember about terrorist
groups and propaganda merchants, is that they'll claim
"responsibility" or otherwise misattribute acts immediately to gain
attention. Often the first thing reported is what sticks in the public
mind.
[0] https://www.theguardian.com/business/2025/apr/28/spain-and-p...