By Jonathan Davies

First Great Western workers are set to hold two lengthy strikes over the August bank holiday weekend.

The Rail, Maritime & Transport (RMT) union said the members, including drivers and guards will hold a 24-hour strike on 23 August and a 72-hour strike from 29 August. Maintenance workers will strike on 29 and 31 August.

The RMT said the strikes are for the same reasons a 48-hour strike was held last month, which caused major disruption for tens of thousands of commuters.

Workers are understood to be concerned over jobs, services and the safety of the new high speed Hitachi trains, which are set to be introduced from 2017.

RMT general secretary Mick Cash said: "Despite strenuous efforts by our negotiators, we have not been able to secure the kind of progress required in the key areas of jobs, services and safety for us to reach an agreement.

"As a result we have no option but to put further action on.

"The fact remains that if it is good enough for East Coast, using the same trains, to meet the very basic assurances sought by this trade union then it is good enough for First Great Western as well."