Foreign direct investment in Indonesia in the second quarter is expected to be 15 percent higher than a year earlier, compared with a 9.8 percent increase in January to March, the investment chief said on Wednesday.

"God willing, there is no change [to the investment target of 15 percent]," Mahendra Siregar, chief of Indonesia's Investment Coordinating Board, told reporters.

The government has targeted foreign investment of $32.8 billion this year, up from just over $23 billion in 2013.

The FDI data, which shows what companies plan to invest rather than actual spending, excludes investment in the oil and banking sectors.