Police in Keelung are investigating the deaths of two brothers in their 70s found inside their home, with no sign of foul play so far.

• The two men, surnamed Cheng, were found dead at their house in Keelung's Anle district.
• Police were called after family and neighbours could not reach them for several days, and a locksmith opened the door.
• There were no signs of a struggle and no obvious injuries on either body.
• Evidence collection at the scene is finished, and prosecutors have been asked to conduct autopsies.

Outlook: The cause of death should become clearer once the Keelung prosecutors' office completes its examination.