BUDAPEST, Hungary (AP) — Russian President Vladimir Putin is in Hungary for the second time this year to attend the World Judo Championships being held in Budapest.

The Hungarian government said Putin also plans to meet Monday with Prime Minister Viktor Orban, who invited the Russian leader to the event when he visited Hungary in February.

Hungarian opposition parties are protesting Putin's trip and worry that Orban has become too close to the Russian leader. Orban used to be highly critical of Russian influence in the region.

Hungary relies on oil and natural gas from Russia, which also is building new reactors for Hungary's Soviet-era nuclear power plant. Critics say the project is rife with corruption risks and increases Hungary's dependency on Moscow.

Russia has loaned Hungary 10 million euros (about $12 million) for the nuclear development plan.