Katherine Firkin: US correspondent on former President Donald Trump visiting the site of Ohio train derailment - Heather du Plessis-Allan Drive

Former US President Donald Trump is visiting the Ohio town of East Palestine tomorrow.

A train derailed two weeks ago, leaking toxic matter in what's been considered one of the worst environmental disasters in recent memory.

US correspondent Katherine Firkin says Trump's been a vocal critic of President Biden's handling of the disaster.

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