Yemen's Iran-backed Houthi rebels are attempting to build a new advanced medium-range ballistic missile system with the help of Chinese parts, according to a new report released Wednesday by a group that tracks the use of weapons in conflict zones. Experts say that Yemen's Iran-backed Houthi rebels are working on a new medium-range ballistic missile system using Chinese parts. Key points and original sources are listed below.

• Yemen's Iran-backed Houthi rebels are attempting to build a new advanced medium-range ballistic missile system with the help of Chinese parts, according to a new report released Wednesday by a group that tracks the use of weapons in conflict zones.S1

• Experts say that Yemen's Iran-backed Houthi rebels are working on a new medium-range ballistic missile system using Chinese parts.S2