UPDATE 8-Police consider manslaughter charges over deadly London tower block blaze
* Police fear death toll could rise above 79 (Adds reaction from resident and PM May over evacuation)
TOKYO, March 4 The yield on 30-year Japanese government bonds dropped 6.0 basis points on the day to hit a 2 1/2-year low of 1.705 percent on Monday, reflecting expectations that the Bank of Japan may buy more 30-year bonds to boost monetary expansion.
Japanese investors are snatching up long-dated bonds ahead of their annual book-closing at the end of this month, after having being underweight on these maturities for fear that Prime Minister's Shinzo Abe's loose monetary policy plan might spark future inflation.
* Unarmed drones would help watch Chinese navy (Adds details from White House briefing)