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In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.

A Tibetan nun has set herself on fire in western China, the latest in a series of self-immolations among the region's Buddhist clergy, an advocacy group said Tuesday. 
  
 In a separate incident, security forces shot two Tibetans during a protest outside a police station, London-based Free Tibet reported. 
  
 The two incidents could not immediately be independently confirmed Tuesday, although tensions have been high across the region since widespread anti-government protests in 2008. Communist government officials gave no comment when contacted. 
  
 Free Tibet said the nun, 20-year-old Tenzin Wangmo, died after setting herself on fire Monday outside Dechen Chokorling nunnery in Sichuan province's Aba prefecture where a number of other self-immolations have taken place this year. The group said she chanted slogans as she set herself alight calling for greater religious freedom and the return of Tibet's exiled Buddhist leader, the Dalai Lama. 
  
 The two men shot Sunday in Sichuan's Garze prefecture, identified as Dawa and Druklo, were taken away by area residents and their conditions were unknown, Free Tibet said. Many Tibetans use just one name. 
  
 Although there is no tradition of self-immolation as a form of protest in Tibetan society, a total of nine monks and nuns have set themselves on fire since March in what are considered desperate acts to draw attention to repression of Tibetan Buddhism. Most have been accompanied by calls for Tibetan freedom and the return of the Dalai Lama, who fled to India amid an abortive uprising against Chinese rule in 1959. 
  
 "The acts of self-immolation are not taking place in isolation, protests have been reported in the surrounding region and calls for wider protests are growing," Free Tibet Director Stephanie Brigden was quoted as saying in a statement. 
  
 Communist Party and government spokesmen in Aba said they knew nothing about the reported incident and refused to give their names or titles because they weren't authorized to speak with foreign media. 
  
 A party spokesman in Garze's Seda county also said he had no knowledge of the shootings and refused to comment further. ||||| Hong Kong (CNN) -- A nun has died after setting herself on fire in southwestern China, the first Tibetan woman known to have killed herself in this way, the London-based Free Tibet campaign group said Tuesday. 
  
 According to the group, Tenzin Wangmo, 20, called for religious freedom in Tibet and for the return of the Dalai Lama as she set fire to herself outside Dechen Chokorling Nunnery in Ngaba County, Sichuan Province on Monday. 
  
 She died at the scene. 
  
 The State Administration for Religious Affairs in Beijing told CNN they were not aware of the incident. 
  
 Free Tibet, which advocates Tibetan independence, also reported that two Tibetans were shot and wounded on Sunday by security forces during a protest outside a police station in the prefecture of Ganzi. 
  
 Tenzin is the ninth Tibetan -- all monks or former monks -- to commit self-immolation in protest against Chinese rule since March, the advocacy group said. Five have died. 
  
 The last attempt took place on Saturday when a 19-year-old former monk from Kirti monastery in Aba, another ethnic Tibetan area in Sichuan province, set himself alight in the central market in Ngaba Town but survived. 
  
 His whereabouts are unknown, according to Free Tibet. 
  
 Activists say the disturbing acts reflect an increasingly repressive environment under Beijing's control. 
  
 "Most Tibetans live in fear because of suppressive and unfair government policies but they dare not speak up," prominent Tibetan writer and activist Tsering Woeser told CNN. 
  
 "Tibetan Buddhists can't use violence to protest, therefore they can only do violence to themselves, such as self-immolation, to make people pay attention to their situation. 
  
 "This is not suicide, this is sacrifice in order to draw the world's attention." 
  
 Another incident in Aba in March, in which a monk died, sparked weeks of often violent confrontation between local monks and authorities. Security forces locked down the Kirti Monastery and eventually detained more than 300 monks, rights groups said at the time. 
  
 When the United Nations working group on enforced disappearances expressed its concern to Beijing, Chinese officials called the organization's perspective "biased and unfair." 
  
 "The relevant local authorities are conducting legal education for the Kirti Monastery monks to maintain religious order there -- there was no question of forced disappearances," Hong Lei, a foreign ministry spokesman, said in June. 
  
 China also rejects accusations of oppression of Tibetans, saying its rule has greatly improved living standards for the Tibetan people. 
  
 The Dalai Lama's representative signed an agreement with Beijing in 1951 to affirm China's sovereignty over Tibet but also grant autonomy to the area. A failed uprising against Beijing's rule in 1959 forced the Dalai Lama into exile. 
  
 The Dalai Lama denies seeking independence for Tibet, saying he wants genuine autonomy, under which Tibetans can make their own policies on key issues, such as religious practices. 
  
 In a 2008 uprising, violent unrest in Tibet and the subsequent military crackdown left at least 18 dead, and activists say tensions have remained high in many areas since then. 
  
 CNN's Xiaoni Chen contributed to this report. |||||
Output:
A Tibetan nun protesting China's policies has died after setting herself on fire outside a nunnery in Sichuan province, the Free Tibet group says. The 20-year-old woman, who called for religious freedom in Tibet and the return of the Dalai Lama, is the ninth Buddhist clergy member—and the first woman—to set herself on fire since March to protest China's policies, CNN reports. Five have died. In a separate incident, two Tibetans were shot and injured during a protest outside a police station yesterday, according to Free Tibet. "The acts of self-immolation are not taking place in isolation, protests have been reported in the surrounding region, and calls for wider protests are growing," the group says. Chinese government officials in the region contacted by the AP said they knew nothing about the incidents. The officials refused to provide their names or titles, saying they weren't allowed to speak to foreign media.