TOKYO, April 24 -- NHK World issued the following news:

The head of the United Nations' agency for Palestinian refugees has said aid deliveries to the Gaza Strip are on the rise, but also expressed concerns that sanitary conditions in Gaza could worsen in hot weather.

Commissioner-General Philippe Lazzarini of the UN Relief and Works Agency for Palestine Refugees in the Near East, or UNRWA, made the remarks at a news conference on Tuesday.

He said the daily number of trucks entering Gaza reached 316 on Monday.

But UNRWA says more than 500 trucks per day must enter to deliver necessary aid.

Lazzarini also said garbage collection has become a priority in areas where many residents are sheltering. He said there is fear that the areas coul...