How to find the relevant shipment IDs for a given invoice. (One order line - Multiple shipments)

Hi Experts, 

There is a customer order invoice which was created as a collective invoice.

One order with single line and 2 separate shipments were made. One invoice was created for both the shipments using the ‘Collective invoice’ functionality. 

The customer invoice has only one line for both the shipments and my question is whether there is a way to find out the connected shipments for this invoice line. Or is it possible to find out the Invoices created from the given shipments.

Thanks.