London Underground workers are planning five days of strike action over Tube ticket office closures, the RMT Union has announced.

The row is about the closure of all 260 Tube ticket offices and 960 job cuts.

Members will walk out from 9pm on April 28 for two days and again from the same time on May 5 for three days.

This is the second time workers will strike, after walking out in February over the same issues.