Mr Tunji-Ojo acknowledged that Nigeria had an existing, commendable working relationship with the UK Home Office.
The tragedies follow a spike in crossings after a 10-day lull due to weather-related conditions.
A six-month visit visa will cost £127 from £115 while two years visa will go for £475 up from £432.
The UK government has banned a raft of dangerous synthetic opioids in a bid to stop drug overdoses and deaths.
Prime Minister Rishi Sunak’s administration believed this would cut immigration into the UK by 300,000 per year.
The UK government says the increase would enable it to fund “vital services” in the country’s public sector.
The UK Home Office has said it will declare Russian mercenary group Wagner a terrorist organisation.
