The Labour party have issued a number of press releases through the week, all of which to date have been in the name of shadow ministers rather than the party leader. Additionally, many Labour MPs have appeared on television, tweeted, and given media interviews on the controversial policies announced through the week.
BuzzFeed News texted Jeremy Corbyn's spokesman on Tuesday lunchtime with "two quick questions": "Whereabouts is Jeremy this week? And whether he plans to respond to any of the stuff coming out of Tory conference".
There had been no response by Wednesday morning.
Update: Jeremy Corbyn has been spotted buying upcycled knitwear in Bardon Mill, a village in Northumberland. He is on a trip walking a section of Hadrian's wall with his wife, Laura.
Update 2: on Wednesday afternoon the Labour leader issued the following statement:
“Conservative Party leaders have sunk to a new low this week as they fan the flames of xenophobia and hatred in our communities and try to blame foreigners for their own failures.
“Drawing up lists of foreign workers won’t stop unscrupulous employers undercutting wages in Britain. Shutting the door to international students won’t pay young people’s tuition fee debts, and ditching doctors from abroad won’t cut NHS waiting lists.
“The Conservatives will instead foster division and discrimination in our workplaces and communities.
“Once again, they are making false promises on immigration they can’t deliver. Instead of turning people against each other, ministers should take action now to deal with the real impact of migration.
“They should stop the abuse of migrant labour to undercut pay and conditions, which would reduce numbers.
“They should support communities with high levels of migration and they should set out a positive agenda for fair migration rules as part of the Brexit negotiations for a new relationship with the European Union.”