In a shocking incident, Pakistan's famous actress Shamim was shot dead on Monday by some unidentified gunmen in Punjab province of the nation. The 29-year-old was killed on Monday morning outside her house in Shah town of Multan city, about 350 km from Lahore, according to news agency PTI. Shamim's brother, Saifur Rehman told police that someone had called his sister (Shamim) to come outside the house. "When she came out of the main gate of her residence, unidentified men opened fire on her, killing her on the spot," Shamim's brother said. Here are top things to know what really happened and who may be behind the murder:- - Shamim was known as 'Shamo' and she was a very good dancer. - She had recently received threats from someone for performing in theatres, according to Shamim's brother - Shamim's family also suspect that her estranged husband might be involved in the murder. Theater Actress Shamim Shot Dead in Multan - #Pakistan pic.twitter.com\/Zyair72oNC \u2014 BreakingNewsPakistan (@BreakingNewPak) October 9, 2017 - Police has registered an FIR against unidentified persons and said it will probe the case from all angles. Last year, famous theatre actress Kismat Baig was killed by her estranged lover in Lahore. She was shot 11 times in her legs, stomach and hands. "Kismat now you will not be able to dance," one of the gunmen said after spraying bullets on her legs, her driver had told police, as per a report in PTI. A number of stage actresses - Nadra, Nagu, Yasmin, Naina, Nagina, Marvi, Karishma, Sangam and Arzo - of Lahore and Multan had been killed in the past, either by their estranged lovers or over some enmity issue.