By Timour Azhari and Mubasher BukhariRIYADH, Oct 2 (Reuters) - Saudi Arabia is planning an offensive against Iran-backed Houthi militants in Yemen, with options being considered including a coastal push to secure the Red Sea shipping route or an assault on multiple fronts, regional and Western officials told Reuters. Options under review include a coastal drive to protect vital Red Sea shipping routes Key points and original sources are listed below.

• By Timour Azhari and Mubasher BukhariRIYADH, Oct 2 (Reuters) - Saudi Arabia is planning an offensive against Iran-backed Houthi militants in Yemen, with options being considered including a coastal push to secure the Red Sea shipping route or an assault on mul...S1

• Options under review include a coastal drive to protect vital Red Sea shipping routesS2

• Operation, expected to be launched in the coming weeks, will by led by Yemeni forces on the ground and supported by Saudi air strikes, sources sayS3