Evacuation orders were lifted in small sections of a Japanese town just southwest of the wrecked Fukushima nuclear power plant on Saturday, in time for the area's popular cherry blossom season, and Prime Minister Fumio Kishida joined a ceremony to mark the reopening.

The area of about 4 square kilometers where entry restrictions were lifted is part of Tomioka town, most of which had already been reopened since an earthquake and tsunami in March 2011 triggered triple meltdowns at the Fukushima Daiichi nuclear power plant.

At the ceremony, Kishida pledged to keep working to reopen all no-go zones. "The lifting of the evacuation is by no means a final goal, but the start of the recovery," Kishida said.

The 2011 disaster caused massive amounts of radiation to leak from the plant, and more than 160,000 residents had to evacuate from across Fukushima, including about 30,000 who are still unable to return home.

Tomioka is one of 12 nearby towns fully or partially designated as no-go zones. The two sections in Tomioka that reopened for the first time in 12 years represent one-fifth of the worst-hit no-go zone and were selected by the government along with several other locations in the region for intensive decontamination.

But jobs, daily necessities and infrastructure remain insufficient, making it difficult for younger people to return, and families with small children worry about possible radiation effects.

"The living environment and many other things still need to be sorted out," Tomioka Mayor Ikuo Yamamoto told reporters.

In the newly reopened Yonomori and Osuge districts of Tomioka, just over 50 of about 2,500 registered residents have reportedly returned or expressed intention to go back to live.  Only about 10 percent of the town's pre-disaster population of 16,000 have returned since large areas of Tomioka reopened in 2017.

Town surveys show a majority of former residents say they have decided not to return because they have already found jobs and educations and built relationships elsewhere.

The evacuation order was lifted in several sections of another hard-hit town, Namie, northwest of the plant, on Friday. The reopened area accounts for only about 20 percent of the town.

(With input from AP)