KABUL - Taliban-led insurgency in Afghanistan would increase in spring and summer this year, the spokesman of NATO-led International Security Assistance Force said Monday.

"High-profile attacks are likely to continue - and even increase - as insurgents attempt to promote a perception of instability," Brigadier-General Josef Blotz told reporters in a press conference here.

However, he said the overall number of suicide attack continues to decrease in the militancy-ridden country.

"More than 30 suicide attacks have been directed at soft targets since beginning of this year, aimed at instilling fear among innocent Afghans," the spokesman of NATO-led forces said.

According to Blotz, 435 insurgents leader have been captured or killed and more than 2,000 mid or low-level insurgents have been captured and 500 others had been killed in Afghanistan between January 13 and April 15 this year.