Art show using footage from drones opens at K11 in Tsim Sha Tsui
Artists Marco De Mutiis and Kenny Wong use a variety of mediums to highlight the "tension" in the in-between spaces.

A trio of surveillance drones have been deployed to monitor thousands of Hongkongers as they walk through the Tsim Sha Tsui subway this month - all in the name of art.
While drones, or unmanned aerial vehicles, are mostly associated with military operations, the remote-controlled quadcopters at the K11 art space in Tsim Sha Tsui have a far less controversial purpose.
Artists Marco De Mutiis, 30, and Kenny Wong, 26, won a digital arts grant from Bloomberg earlier this year and spent the summer flying half a dozen quadcopters around the city. The footage they captured is shown in a video at the show, "Liminal", at the K11 art space.
Video: artists use drones to highlight "tension" in in-between spaces in Hong Kong's TST subway
The pair enlisted the drones to capture the tension of "in-between spaces".