This was stated by the First Deputy Permanent Representative of Russia to the UN Dmitry Polyansky.
“Over the past two weeks since the tragedy, due to outright sabotage by the Hayat Tahrir ash-Sham terrorists *, not a single humanitarian convoy has been sent across the lines of contact,” TASS quoted him as saying.
According to Polyansky, we are talking about "militants who have settled in Idlib, who in one case accept humanitarian aid, and in the other put a barrier to it."
“Unfortunately, a number of delegations in the Security Council actually condone them,” Polyansky noted.
Earlier, the Center for the Reconciliation of Warring Parties in the SAR reported that the terrorists were planning sabotage and attacks on the positions of the Syrian army and Russian military personnel in the Idlib de-escalation zone.
*
Jabhat al-Nusra (Hayat Tahrir ash-Sham, Jabhat Fatah ash-Sham, al-Nusra Front) - the organization was recognized as a terrorist organization by the decision of the Supreme Court of the Russian Federation of December 29, 2014.