A search has been launched for a missing mother-of-two who has a medical emergency “of which she is unaware”, a family friend has said.

Police in Dublin have renewed an appeal for information on the whereabouts of Ciara Farrell after she vanished on 14 November.

Dublin gardai, who said they were “very concerned for her welfare”, described Ms Farrell as 5’11’’, of average build, with blue eyes and blonde hair. Her car was found on Friday.

Jean Sorohan Cosgrave, a family friend, appealed on Facebook to anyone who may have seen Ms Farrell since her disappearance.

Ms Cosgrave said the 45-year-old doctor was last seen leaving St Vincent’s University Hospital in Dublin.

In a post that has been shared thousands of times, Ms Cosgrove wrote: “Ciara is still missing, so everyone we still need your help, please keep sharing for Ciara and her family.”

“The police have taken her car (white Hyundai i20 with 151 D registration) from The Rise, Mount Merrion, Co Dublin,” she continued. “Ciara has a medical emergency, of which she is unaware of and needs to be found very quickly, because she needs urgent medical attention.

She added: “She was wearing a pink floral dress and a black cardigan when she disappeared. Her family are very concerned for her wellbeing.

"Can I please ask everyone to keep sharing and those of you who haven't shared yet please do, because the more people who see this, the better chance there is in finding Ciara for her family.”

The missing people from Grenfell Tower Show all 23 1 /23 The missing people from Grenfell Tower The missing people from Grenfell Tower Jeremiah, son of Zainab Dean The missing people from Grenfell Tower Zainab Dean The missing people from Grenfell Tower Malek Belkadi The missing people from Grenfell Tower Tamzin Belkadi The missing people from Grenfell Tower Rania Ibrham The missing people from Grenfell Tower Jessica Urbano The missing people from Grenfell Tower Yasin el-Wahabi and Nurhada el-Wahabi The missing people from Grenfell Tower Ali Yawar Jafari The missing people from Grenfell Tower Anthony Disson The missing people from Grenfell Tower Mohamed 'Saber' Neda The missing people from Grenfell Tower Mariem Elgwahry The missing people from Grenfell Tower Hesham Rahman The missing people from Grenfell Tower Mohamednur 'Mo' Tuccu The missing people from Grenfell Tower Hamid Kani The missing people from Grenfell Tower Mary Mendy The missing people from Grenfell Tower Sheila Smith The missing people from Grenfell Tower Khadija Saye The missing people from Grenfell Tower Berikti Habtom (L) was still missing according to her sister Arsiema Alula (R) The missing people from Grenfell Tower Ligaya Moore The missing people from Grenfell Tower Dennis Murphy The missing people from Grenfell Tower Nadia Choucair The missing people from Grenfell Tower Gloria Trevisan and Marco Gottardi The missing people from Grenfell Tower Sakineh Afraseiabi and Fatima Afraseiabi