The letter, also signed by the ombudsman of Catalonia, calls on those fasting to protect their health and maintain their strength for their upcoming trial
The pro-independence officials will also appeal their suspension as MPs in the European Court of Human Rights in Strasbourg
Shops owners concerned about Christmas sales potentially being affected
Josep Andreu is the first non-imprisoned official to take part in the protest started by four officials behind bars in early December
Ministers and MPs shut themselves up in monastery and refuse to eat for 24 hours
Action also aims to reject Spanish constitution on its 40th anniversary on the grounds that "it blocks exercise of fundamental rights"
Four jailed politicians on hunger strike to denounce court ignoring their cases
Jordi Turull tells radio station about his protest and condemns Constitutional Court for blocking his appeals
There are now four politicians in pre-trial prison taking part in protest
Antonio Marinho Pinto visits former speaker Carme Forcadell in prison
JxCat, ERC and CUP members and former president Puigdemont hold talks ahead of trial against 2017 referendum
Pro-independence leaders "strong and committed" on second day of protest action
First photo of seven male incarcerated officials made public by pro-independence civic organization
President of doctors association warns of potential health 'risk' of protest from first day
Jailed leaders have “protection and guarantees of rule of law,” says Pedro Sánchez’s executive