Hong Kong's pro-democracy demonstrators formed a human chain across the territory on Friday evening in a show of solidarity for the city's protest movement.

Starting from around 8 p.m. local time (8 a.m. ET), thousands of people began holding hands, forming chains along three subway lines to form the "Hong Kong Way."

The human chain extended across the city. Photo: Kin Cheung/AP

The action was planned to coincide with the 30th anniversary of the "Baltic Way," a historically significant peaceful demonstration against Soviet occupation.

On August 23, 1989, an estimated 2 million people formed a 600 kilometer (372 miles) human chain across the three Baltic states of Estonia, Latvia and Lithuania.

Protests have been going on for months. Photo: Kin Cheung/AP

Friday's protest was a peaceful event. At some places, people were singing and chanting pro-democracy slogans.

The protests were peaceful, with demonstrators chanting and singing. Photo: Vincent Yu/AP

Protests have been happening for more than two months in Hong Kong.

Initially, the focus was on a now-suspended extradition bill that would have allowed China to extradite people from the territory.

Since then, demands have expanded to include calls for democracy and political reforms.