UPDATE 14-Japan's ruling coalition makes strong election showing after Abe killing
* Coalition increases upper house majority
* Vote seen as bolstering PM's defence, economic plans
* Election comes after ex-premier assassinated on Friday
* Final results due Monday (Updates with details)
By Elaine Lies and Satoshi Sugiyama
TOKYO/NARA, Japan, July 10 (Reuters) - Japan's conservative coalition government increased its majority in the upper house of parliament in an election on Sunday, two days after the assassination of dominant politician and power broker Shinzo Abe.
Abe, Japan's longest-serving modern leader, was gunned down on Friday during a campaign speech in the western city of Nara in a killing that stunned a country where political violence and gun crime are rare.
Prime Minister Fumio Kishida's Liberal Democratic Party (LDP), of which Abe remained an influential lawmaker, and its junior partner Komeito won 76 of the 125 seats contested in the chamber, from 69 previously, according to an exit poll by public broadcaster NHK.
The LDP won 63 seats, up from 55, to win a majority of the contested seats, but not enough to take a single majority overall.
Elections for parliament's less powerful upper house are typically a referendum on the sitting government. Change of government was not at stake, as that is determined by the lower house.
But the strong showing could help Kishida consolidate his rule as he looks to steer Japan's recovery from the COVID-19 pandemic, keep a lid on rising consumer prices, and bolster defence at a time of tension with its powerful neighbour China.
Final results are due on Monday afternoon.
"It's significant we were able to pull this election together at a time violence was shaking the foundations of the election," Kishida, an Abe protege, said after the exit poll.
"Right now, as we face issues including the coronavirus, Ukraine, and inflation, solidarity within the government and coalition parties is vital," he added.
The party held a moment of silence for Abe at its Tokyo headquarters as members waited for results to come in.
The gains may allow Kishida to revise Japan's pacifist constitution, a dream Abe never achieved.
Parties open to revising the constitution maintained their two-thirds majority in the upper house.
Kishida may move cautiously on constitutional change, but the apparent victory looked set to pave the way for more defence spending, a key LDP election promise, said Robert Ward of the International Institute of Strategic Studies.
Kishida "now has a green light for this", Ward said.
Asked about constitutional revision on Sunday evening, Kishida said he would focus on putting together a bill to be discussed in parliament.