The article debunks the conspiracy theory on that.
Fact-checking organizations noted that many conspiracy theories circulating online focused on a stained mattress visible in videos of the January 8 incident, with claims alleging that it had been found inside the tunnel.
A USA Today fact-check stated that the stained mattress seen in viral videos had been removed from behind wood paneling of the synagogue rather than from the tunnel itself, undermining online speculation that the mattresses were in the tunnel. Additional fact-checks from organizations such as FactCheck.org and AFP likewise found no evidence supporting claims that the tunnel or its contents were connected to any illicit activity.