Burglars broke into the consular section of Pakistan's high commission in Bangladesh and stole computers, prompting Islamabad to summon Dhaka's ambassdor here to lodge a strong protest and demand better security.
A case was lodged on Sunday after the officials at the high commission discovered the broken window after the weekly holidays.
The Pakistan Foreign Office said the burglary in the high commission, located in a highly secure diplomatic area, is a matter of "grave concern".
"We have lodged a strong protest with the Bangladesh's authorities, both in Dhaka and in Islamabad, over this incident," it said in a statement on Tuesday.
It is the responsibility of the Bangladesh government to provide full security to the Pakistan High Commission premises, it said.
"The Bangladesh authorities have been requested to carry out a thorough investigation, share a detailed report with us and bring the culprits to justice," the statement said.
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Pakistan summoned Bangladesh High Commissioner Tarik Ahsan in Islamabad on Monday to hand over a protest note, bdnews24.com reported.
The CCTV camera footage showed three men broke into the ground floor of the high commission through an air-cooler window on the night of November 22, Gulshan Police Station Officer-in-Charge Abu Bakr Siddique was quoted as saying by the Bangladeshi news portal.
"They made off with the air-cooler, three CPUs, a monitor and four UPS by a rickshaw van and an autorickshaw," he said.
The relations between Bangladesh and Pakistan hit a new low following Islamabad's criticism of the 1971 war crimes trial in Dhaka.
In 2009, Bangladesh set up war crimes tribunal to investigate and prosecute suspects for the genocide committed in 1971 by the Pakistan Army and their local collaborators, Razakars, Al-Badr and Al-Shams during the Bangladesh Liberation War.