LONDON – Where’s the chicken? That’s the question Britons have been asking themselves lately, as KFC locations close by the hundreds because no chicken is available, the Washington Post reports.

Yesterday marked the fourth day without chicken at less than half of its U.K. KFC restaurants, promoting the chain to issue humorous statements like: “The chicken crossed the road, just not to our restaurants.” Apparently, some customers didn’t find that amusing, and have taken to calling local police and members of parliament to complain about the absence of fried chicken. Tower Hamlets police have requested that residents stop calling the station in relation to “#KFCCrisis … It is not a police matter if your favourite eatery is not serving the menu that you desire,” the police department tweeted.

KFC pointed to “a couple of teething problems” with DHL, a new delivery firm. “We know that this might have inconvenienced some of you over the last few days, and disappointed you when you wanted your fried chicken fix—we’re really sorry about that,” read a KFC statement issued over the weekend. “Shout out to our restaurant teams who are working flat out to get us back up and running again.”

The company couldn’t be sure when the rest of its U.K. locations would be once again offering fried chicken. On its part, DHL reported that operational snafus had made a number of deliveries “incomplete or delayed.”