Ali Raza Abidi, a former member of Parliament from Pakistan’s tumultuous port city of Karachi, was returning home on December 25 when two unknown men fatally shot him several times. As thousands shared tributes and prayers on social media, Pakistan’s Minister of State for Interior, Shehryar Afridi, wrote on Twitter that all available resources would be used to “track down” Abidi’s killers.

Mubashir Zaidi, a senior Pakistani broadcast journalist, quoted the minister’s tweet and asked what had happened to the investigation of another murder: Tahir Dawar, a police officer who was abducted from Pakistan’s capital, Islamabad, last October. Dawar’s dead body was later found in Afghanistan and bore marks of torture. Zaidi commented that Abidi’s murder, like that of Dawar’s and several others, would remain unsolved.

Only a week after sending his tweet, Zaidi received an email from Twitter’s legal department. He was informed that his tweet was in violation of Pakistan’s laws.

“Twitter has not taken any action on the reported content at this time. We are only writing to inform you that content posted to your account has been mentioned in a complaint,” said the email, seen by Coda Story.