CAPE TOWN - Questions are being asked about why Western Cape police used guns to break up a birthday party.

A video's sent to eNCA shows three armed police officers opening fire on partygoers.

Among the guests was a pregnant lady, a disabled man, and children.

Police allegedly toppled the man’s wheelchair during the commotion.

#PoliceShooting eNCA following up on an alleged case of police brutality in Manenberg pic.twitter.com/7gnV3RnosH — Leigh-Anne Jansen (@LA_JANSEN) September 9, 2017

At least 42 party guests were arrested - 17 have appeared in court on charges of attempted murder, public disorder and malicious damage to property.

The guests have laid counter charges against police.