Reports from the front line in Taiz province, southwestern Yemen, indicate that the Houthis are using bombs suspected to contain toxic substances. A number of civilians and some fighters from the pro-Saudi forces were injured by suffocation. Some lost consciousness. The Saudi-backed forces fighting the Houthis are investigating the reports. Their military spokesman, Majid Abdullah al-Nazili, made the claims in a written statement. can news (The report remains unverified).