TOKYO, Aug. 6 (Xinhua) -- Tokyo stocks closed marginally lower Monday as ongoing international trade tensions triggered by the U.S. weighed on the market paring earlier gains made on solid earnings reports released recently by Japanese firms.

The 225-issue Nikkei Stock Average edged down 17.86 points, or 0.08 percent, from Friday to close the day at 22,507.32.

The broader Topix index of all First Section issues on the Tokyo Stock Exchange, meanwhile, lost 9.68 points, or 0.56 percent, to finish at 1,732.90.

Shares drew buying in early trade, local brokers said, following U.S. shares advancing late last week and some Japanese bellwether firms recently reporting strong learning for the April-June period.

But the index turned negative in the afternoon on continued concerns of trade tensions.

Investors also refrained from making bold moves ahead of Japan-U.S. bilateral trade talks scheduled to take place on Thursday, market analysts also said, highlighting the fact that the U.S. may look to tap into Japan's sensitive automotive and agricultural sector having already imposed tariffs on aluminum and steel exports from here.

By the close of play, metal product, bank and precision instrument-linked issues comprised those that declined the most by the close of play, and falling issues beat rising ones by 1,486 to 540 on the First Section, while 77 ended the day unchanged.

On the main section on Monday, 1,350.67 million shares changed hands, dropping from Friday's volume of 1,399.49 million shares.

The turnover on the first trading day of the week came to 2,085.8 billion yen (18.73 billion U.S. dollars).