Burmese opposition leader Aung San Suu Kyi has challenged the government by attending a ceremony honoring victims of a 1988 uprising against military rule.

The ceremony Monday marked the 23rd anniversary of the failed uprising, which marked her emergency as a leader of Burma's pro-democracy movement. At Monday's event, she urged about 400 people not to forget the government crackdown that followed, in which some 3,000 people died.

The event came a day after the Nobel Peace laureate announced she will make a political trip outside Rangoon next week, despite a warning from the pro-military government to halt all political activities.

A spokesman said she will travel to Bago, about 80 kilometers from Rangoon, on Sunday to attend the opening of two libraries and meet with political network groups.

Aung San Suu Kyi's National League for Democracy party won a landslide electoral victory in 1990, two years after the 1988 uprising, but was never allowed to take power.

She has spent most of the last two decades in some form of detention. She was released from her most recent seven-year stint in November, shortly after a national election in which her party was forbidden to participate.