A brother in Tangail made a phone call to 999 (National Emergency Service) on Wednesday after allegedly killing his sister.
Caller Shahidul Islam, 28, hailed from Uttar Pekua under Mirzapur upazila in Tangail district.
Shahidul also informed police that he had killed his sister 30-year-old Sultana over land dispute.
Police detained Shahidul and sent Sultana's body to hospital morgue, Baishtali police outpost in-charge SI Saiful Islam confirmed to 999.
He also said Shahidul wanted to sell their ancestral property but Sultana did not agree to that.
They later locked in an altercation, and at one point, Shahidul strangled his sister.