KHARTOUM , Sudan -LRB- CNN -RRB- -- A Sudanese court found a British teacher guilty of insulting religion and sentenced her to 15 days in prison Thursday for allowing a teddy bear to be named '' Mohammed , '' British authorities and her lawyer reported . An undated amateur photo of Gillian Gibbons , who has been found guilty of insulting religion . Gillian Gibbons also faces deportation from Sudan after her prison term , her lawyer told CNN . He said that he was `` very disappointed '' with the verdict and that Gibbons planned to appeal . Gibbons was not convicted of two other charges brought against her -- inciting hatred and showing contempt for religious beliefs , her lawyer said . Gibbons , 54 , was arrested Sunday after she asked her class of 7-year-olds in Khartoum to name the stuffed animal as part of a school project , the British Foreign Office said . She had faced charges under Article 125 of Sudan 's constitution , the law relating to insulting religion and inciting hatred . Although there is no ban in the Quran on images of Allah or the Prophet Mohammed , Islam 's founder , likenesses are considered highly offensive by Muslims . Watch latest developments in the case . '' Appearing somber and dazed , Gibbons arrived at the central courthouse in Khartoum for her closed hearing early Thursday . A staff member from the British Embassy in Khartoum and defense lawyers attended the hearing with her . The courthouse was heavily guarded by police , who kept journalists -- and , for a while , even one of her attorneys -- away . Gibbons could have faced a sentence of 40 lashes , a fine , or a jail term of up to a year , according to the Foreign Office , which expressed Britain 's dissatisfaction with the verdict . `` We are extremely disappointed that the charges against Gillian Gibbons were not dismissed , '' Foreign Secretary David Miliband said in a statement issued shortly after the verdict was announced . `` As I said this morning , our clear view is that this is an innocent misunderstanding by a dedicated teacher . Our priority now is to ensure Ms. Gibbons ' welfare , and we will continue to provide consular assistance to her . I have called in the Sudanese ambassador , Omer Siddig , this evening to explain the decision and discuss next steps . '' Watch a report on reactions to the verdict '' The Foreign Office said Gibbons would be given credit for the four days since her arrest , meaning that the she has 11 days remaining on her sentence . Earlier , Miliband had met with Siddig , who was summoned to the Foreign Office in London . `` I explained to him that we were very concerned by the case . We believe that this was an innocent misunderstanding , '' Miliband said in a statement released Thursday after the meeting . `` The Sudanese ambassador undertook to ensure our concerns were relayed to Khartoum at the highest level . He also said he would reflect back to Khartoum the real respect for the Islamic religion in this country , '' the statement added . On the first floor of the courthouse , around 25 police linked arms and forced journalists and British officials away from the court entrance . Police detained some journalists , and confiscated a camera belonging to a freelance CNN cameraman . Four vans filled with riot police were waiting outside the courthouse , but there were no signs of street disturbances or protests . Staff from Gibbons ' school , including Robert Boulos , the head of Unity High School , were present . The staff members refused to comment on their colleague 's predicament . On Wednesday , Boulos said he was `` horrified '' when he found out that the complaint about the naming of the bear came from a member of his own staff -- not from a parent , as originally thought . Defense counsel later confirmed that the complaint came from Sarah Khawad , a secretary at the school . Gibbons has been working at the school -- popular with wealthy Sudanese and expatriates -- since August , after leaving her position as deputy head teacher at a primary school in Liverpool , England , this summer , Boulos said . He said Gibbons asked the children to pick their favorite name for the new class mascot , which she was using to aid lessons about animals and their habitats . E-mail to a friend Journalist Andrew Heavens contributed to this report .