SAN FRANCISCO (AP) – Hundreds of people who protested outside the Japanese Consulate in San Francisco are calling on Prime Minister Shinzo Abe to apologize for his country’s treatment of people from other Asian countries during World War II.

Tuesday’s protest by Chinese-Americans and Korean-Americans came as Abe prepared to meet with President Barack Obama in Washington, D.C., ahead of the prime minister’s three-day visit to California this week.

Abe has faced demands that he use this trip to address Japan’s use of tens of thousands of sex slaves during World War II to serve Japanese troops. As many as 200,000 “comfort women” from Korea, China and other countries were forced into the roles. South Korea has demanded an apology.

Abe plans to travel to San Francisco and Silicon Valley on Thursday.