After a year of damaging scandals involving Pakistan cricket, this latest episode is likely to raise more doubts over the game's integrity
"I have not thought about this," he explained. "I don't even have enough money to hire a lawyer, my only concern now is the security of my family in Lahore."
It is understood that Haider is yet to get in touch with the Pakistan High Commission in London.
The BBC's correspondent in Islamabad, M Ilyas Khan, says the episode has left most cricket observers in Pakistan puzzled with some people sympathising with Haider and others questioning his motives as he is yet to divulge where the threats have come from.
Senior superintendent of police Rana Faisal told local media in Pakistan that police protection has been provided for Haider's family in Lahore.
The Pakistan Cricket Board (PCB) said on Monday that Haider had not informed them that he was leaving the team hotel or the reason for his sudden decision.
Team manager Intikhab Alam said: "He never spoke to me about any of this. I am not a magician to know what is going on in the mind and heart of a person.
Intikhab confirmed that Haider had taken his passport from him, saying he wanted it to obtain a new SIM card for his mobile phone.
International Cricket Council chief executive Haroon Lorgat insists it is a matter for the PCB to try and resolve.
He said: "It is a team management issue in the first instance.
"We would of course be interested in speaking to him but nobody knows where he is. So we won't make any comments until we are able to establish the facts."
England team director Andy Flower told BBC Radio 5 live: "It's a sad and worrying story so far but I don't think anyone is sure of the facts yet.
"Certainly I'm not, so it would be remiss of me to comment too strongly on it. But one thing is for certain, the ICC need to be decisive."
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