Four men have been remanded in custody after they were charged in connection with a €3.9m cannabis seizure in Co Laois earlier this week.

Gerard O'Brien, 42, with an address at Clarina Avenue, Ballinacurra Weston in Limerick, and 41-year-old John Ryan, of Oisin Drive, O'Malley Park also in Limerick, appeared before Judge Bernadette Owens at Tullamore District Court.

Both are accused of the possession of cannabis herb on 1 July at Raheen, Co Laois, and possession of cannabis herb for sale or supply.

Applications for bail were refused by Judge Owens.

There were no bail applications for Ian Murphy, 34, Raheendoran, Co Carlow, and Ciaran Williamson, a 29 -year-old from Carmody Way, Fairgreen, Portlaoise.

Both are accused of possession of cannabis, and possession of cannabis for sale or supply, at Clondouglas, Portlaoise, on 1 July.

On the application of Inspector Brian Farrell, Judge Owens remanded the men in custody to appear at Cloverhill District Court on 10 July.

Inspector Farrell said directions from the DPP were awaited and because it was a complex and very large investigation, a comprehensive file will be sent.

He also said five days' notice would be required if there are going to be bail applications because the Chief Superintendent would have to be present to give evidence.

The court was told over 7kg of cannabis herb and 377kg of cannabis-infused products were found.

The 7kg of cannabis had been analysed and its estimated street value is €140,000.

The other items were awaiting analysis in the forensic science laboratory and were believed to have a street value in excess of €3.7m.